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The Effects of an Antioxidant Formulation on Ocular Blood Flow

The Effects of an Antioxidant Formulation on Intraocular Pressure, Ocular Perfusion Pressure, Retrobulbar, Retinal Capillary and Choroidal Blood Flow

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01930487
Enrollment
47
Registered
2013-08-29
Start date
2013-08-31
Completion date
2015-08-31
Last updated
2016-12-05

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Primary Open Angle Glaucoma

Keywords

Primary open angle glaucoma, intraocular pressure, ocular perfusion pressure, retrobulbar blood flow, retinal capillary blood flow, choroidal blood flow

Brief summary

The objective is to evaluate the effects of an antioxidant formula versus placebo on ocular blood flow in a randomized double-blind, crossover design. Based upon preliminary data, it is hypothesized that a dietary supplement containing a variety of ingredients with antioxidant properties will, compared to placebo, increase ocular perfusion pressure, retrobulbar, retinal capillary and choroidal blood flow, and maintain these effects over the course of the treatment period.

Interventions

DIETARY_SUPPLEMENTdietary supplement with antioxidants

Formulation contains vitamins, a mineral, dietary antioxidants, amino acids, polyphenols and polyunsaturated fatty acids

DIETARY_SUPPLEMENTPlacebo

Placebo - Softgels manufactured to mimic the appearance of active, dietary supplement with antioxidants

Sponsors

ScienceBased Health
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
BASIC_SCIENCE
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
30 Years to 70 Years
Healthy volunteers
No

Inclusion criteria

* Age 30 years or older. * Confirmed diagnosis of open angle glaucoma by glaucoma specialist in the study eye, as evidenced from criteria representative of glaucomatous optic nerve damage such as specific optic disc or retinal nerve fiber layer structural abnormalities and/or visual field abnormalities. * Best corrected visual acuity at 20/60 or better in study eye. * Willingness to avoid caffeine and smoking for 12 hours before and during the study visits.

Exclusion criteria

* History of acute angle-closure or a narrow, occluding of anterior chamber angle by gonioscopy. * History of chronic or recurrent inflammatory eye diseases or signs of intraocular trauma and/or unreliable applanation tonometry. * Severe, unstable or uncontrolled cardiovascular, renal or pulmonary disease * History of/or current renal or hepatic impairment. * History of/or current bronchial asthma, severe chronic obstructive pulmonary disease, sinus bradycardia, second or third degree atrioventricular block, or cardiogenic shock. * Recent surgery or surgery planned near study timeline * History of bleeding disorder * Use of blood thinning medications * Use of specified dietary supplements for three weeks prior to study entry and throughout study period.

Design outcomes

Primary

MeasureTime frameDescription
Change in Superior Retinal Capillary Blood Flow (% Zero Pixels)baseline and 30 dayschange (post-treatment - pre-treatment) in superior retinal capillary blood flow (% zero pixels or % avascular tissue) using Heidelberg Retinal Flowmeter (HRF)
Change in Inferior Retinal Capillary Blood Flow (% Zero Pixels)baseline and 30 dayschange (post-treatment - pre-treatment) in inferior retinal capillary blood flow (% zero pixels or % avascular tissue) using Heidelberg Retinal Flowmeter (HRF)

Secondary

MeasureTime frameDescription
Change in Ocular Perfusion Pressurebaseline and 30 dayschange (post-treatment - pre-treatment) in ocular perfusion pressure (2/3 Mean arterial pressure - intraocular pressure)
Change in Ophthalmic Artery Peak Systolic Blood Flow Velocity (cm/s)baseline and 30 dayschange (post-treatment - pre-treatment) in ophthalmic artery peak systolic blood flow velocity (cm/s) using color Doppler imaging (CDI)
Change in Central Retinal Artery Peak Systolic Blood Flow Velocity (cm/s)baseline and 30 dayschange (post-treatment - pre-treatment) in central retinal artery peak systolic blood flow velocity (cm/s) using color Doppler imaging (CDI)
Change in Ophthalmic Artery End Diastolic Blood Flow Velocity (cm/s)baseline and 30 dayschange (post-treatment - pre-treatment) in ophthalmic artery end diastolic blood flow velocity (cm/s) using color Doppler imaging (CDI)
Change in Central Retinal Artery End Diastolic Blood Flow Velocity (cm/s)baseline and 30 dayschange (post-treatment - pre-treatment) in central retinal artery end diastolic blood flow velocity (cm/s) using color Doppler imaging (CDI)
Change in Nasal Posterior Ciliary Artery End Diastolic Blood Flow Velocity (cm/s)baseline and 30 dayschange (post-treatment - pre-treatment) in nasal posterior ciliary artery end diastolic blood flow velocity (cm/s) using color Doppler imaging (CDI)
Change in Temporal Posterior Ciliary Artery End Diastolic Blood Flow Velocity (cm/s)baseline and 30 dayschange (post-treatment - pre-treatment) in temporal posterior ciliary artery end diastolic blood flow velocity (cm/s) using color Doppler imaging (CDI)
Change in Ophthalmic Artery Blood Flow - Vascular Resistance (Ratio)baseline and 30 dayschange (post-treatment - pre-treatment) in ophthalmic artery blood flow - vascular resistance (ratio) using color Doppler imaging (CDI)
Change in Central Retinal Artery Blood Flow - Vascular Resistance (Ratio)baseline and 30 dayschange (post-treatment - pre-treatment) in central retinal artery blood flow - vascular resistance (ratio) using color Doppler imaging (CDI)
Change in Nasal Posterior Ciliary Artery Blood Flow - Vascular Resistance (Ratio)baseline and 30 dayschange (post-treatment - pre-treatment) in nasal posterior ciliary artery blood flow - vascular resistance (ratio) using color Doppler imaging (CDI)
Change in Temporal Posterior Ciliary Artery Blood Flow - Vascular Resistance (Ratio)baseline and 30 dayschange (post-treatment - pre-treatment) in temporal posterior ciliary artery blood flow - vascular resistance (ratio) using color Doppler imaging (CDI)
Change in Ophthalmic Artery Peak Systolic Blood Flow Velocity (cm/s) - DMbaseline and 30 dayschange (post-treatment - pre-treatment) in ophthalmic artery peak systolic blood flow velocity (cm/s) using color Doppler imaging (CDI) in patients with type 2 diabetes
Change in Ophthalmic Artery Peak Systolic Blood Flow Velocity (cm/s) - No DMbaseline and 30 dayschange (post-treatment - pre-treatment) in ophthalmic artery peak systolic blood flow velocity (cm/s) using color Doppler imaging (CDI) in patients without type 2 diabetes
Change in Central Retinal Artery Peak Systolic Blood Flow Velocity (cm/s) - DMbaseline and 30 dayschange (post-treatment - pre-treatment) in central retinal artery peak systolic blood flow velocity (cm/s) using color Doppler imaging (CDI) in patients with type 2 diabetes
Change in Central Retinal Artery Peak Systolic Blood Flow Velocity (cm/s) - No DMbaseline and 30 dayschange (post-treatment - pre-treatment) in central retinal artery peak systolic blood flow velocity (cm/s) using color Doppler imaging (CDI) in patients without type 2 diabetes
Change in Nasal Posterior Ciliary Artery Peak Systolic Blood Flow Velocity (cm/s) - DMbaseline and 30 dayschange (post-treatment - pre-treatment) in nasal posterior ciliary artery peak systolic blood flow velocity (cm/s) using color Doppler imaging (CDI) in patients with type 2 diabetes
Change in Nasal Posterior Ciliary Artery Peak Systolic Blood Flow Velocity (cm/s) - No DMbaseline and 30 dayschange (post-treatment - pre-treatment) in nasal posterior ciliary artery peak systolic blood flow velocity (cm/s) using color Doppler imaging (CDI) in patients without type 2 diabetes
Change in Temporal Posterior Ciliary Artery Peak Systolic Blood Flow Velocity (cm/s) - DMbaseline and 30 dayschange (post-treatment - pre-treatment) in temporal posterior ciliary artery peak systolic blood flow velocity (cm/s) using color Doppler imaging (CDI) in patients with type 2 diabetes
Change in Temporal Posterior Ciliary Artery Peak Systolic Blood Flow Velocity (cm/s) - No DMbaseline and 30 dayschange (post-treatment - pre-treatment) in temporal posterior ciliary artery peak systolic blood flow velocity (cm/s) using color Doppler imaging (CDI) in patients without type 2 diabetes
Change in Ophthalmic Artery End Diastolic Blood Flow Velocity (cm/s) - DMbaseline and 30 dayschange (post-treatment - pre-treatment) in ophthalmic artery end diastolic blood flow velocity (cm/s) using color Doppler imaging (CDI) in patients with type 2 diabetes
Change in Ophthalmic Artery End Diastolic Blood Flow Velocity (cm/s) - No DMbaseline and 30 dayschange (post-treatment - pre-treatment) in ophthalmic artery end diastolic blood flow velocity (cm/s) using color Doppler imaging (CDI) in patients without type 2 diabetes
Change in Central Retinal Artery End Diastolic Blood Flow Velocity (cm/s) - DMbaseline and 30 dayschange (post-treatment - pre-treatment) in central retinal artery end diastolic blood flow velocity (cm/s) using color Doppler imaging (CDI) in patients with type 2 diabetes
Change in Central Retinal Artery End Diastolic Blood Flow Velocity (cm/s) - No DMbaseline and 30 dayschange (post-treatment - pre-treatment) in central retinal artery end diastolic blood flow velocity (cm/s) using color Doppler imaging (CDI) in patients without type 2 diabetes
Change in Nasal Posterior Ciliary Artery End Diastolic Blood Flow Velocity (cm/s) - DMbaseline and 30 dayschange (post-treatment - pre-treatment) in nasal posterior ciliary artery end diastolic blood flow velocity (cm/s) using color Doppler imaging (CDI) in patients with type 2 diabetes
Change in Nasal Posterior Ciliary Artery End Diastolic Blood Flow Velocity (cm/s) - No DMbaseline and 30 dayschange (post-treatment - pre-treatment) in nasal posterior ciliary artery end diastolic blood flow velocity (cm/s) using color Doppler imaging (CDI) in patients without type 2 diabetes
Change in Temporal Posterior Ciliary Artery End Diastolic Blood Flow Velocity (cm/s) - DMbaseline and 30 dayschange (post-treatment - pre-treatment) in temporal posterior ciliary artery end diastolic blood flow velocity (cm/s) using color Doppler imaging (CDI) in patients with type 2 diabetes
Change in Temporal Posterior Ciliary Artery End Diastolic Blood Flow Velocity (cm/s) - No DMbaseline and 30 dayschange (post-treatment - pre-treatment) in temporal posterior ciliary artery end diastolic blood flow velocity (cm/s) using color Doppler imaging (CDI) in patients without type 2 diabetes
Change in Ophthalmic Artery Blood Flow - Vascular Resistance (Ratio) - DMbaseline and 30 dayschange (post-treatment - pre-treatment) in ophthalmic artery blood flow - vascular resistance (ratio) using color Doppler imaging (CDI) in patients with type 2 diabetes
Change in Ophthalmic Artery Blood Flow - Vascular Resistance (Ratio) - No DMbaseline and 30 dayschange (post-treatment - pre-treatment) in ophthalmic artery blood flow - vascular resistance (ratio) using color Doppler imaging (CDI) in patients without type 2 diabetes
Change in Central Retinal Artery Blood Flow - Vascular Resistance (Ratio) - DMbaseline and 30 dayschange (post-treatment - pre-treatment) in central retinal artery blood flow - vascular resistance (ratio) using color Doppler imaging (CDI) in patients with type 2 diabetes
Change in Central Retinal Artery Blood Flow - Vascular Resistance (Ratio) - No DMbaseline and 30 dayschange (post-treatment - pre-treatment) in central retinal artery blood flow - vascular resistance (ratio) using color Doppler imaging (CDI) in patients without type 2 diabetes
Change in Nasal Posterior Artery Blood Flow - Vascular Resistance (Ratio) - DMbaseline and 30 dayschange (post-treatment - pre-treatment) in nasal posterior artery blood flow - vascular resistance (ratio) using color Doppler imaging (CDI) in patients with type 2 diabetes
Change in Nasal Posterior Artery Blood Flow - Vascular Resistance (Ratio) - No DMbaseline and 30 dayschange (post-treatment - pre-treatment) in nasal posterior artery blood flow - vascular resistance (ratio) using color Doppler imaging (CDI) in patients without type 2 diabetes
Change in Temporal Posterior Artery Blood Flow - Vascular Resistance (Ratio) - DMbaseline and 30 dayschange (post-treatment - pre-treatment) in temporal posterior artery blood flow - vascular resistance (ratio) using color Doppler imaging (CDI) in patients with type 2 diabetes
Change in Temporal Posterior Artery Blood Flow - Vascular Resistance (Ratio) - No DMbaseline and 30 dayschange (post-treatment - pre-treatment) in temporal posterior artery blood flow - vascular resistance (ratio) using color Doppler imaging (CDI) in patients without type 2 diabetes
Change in Ocular Perfusion Pressure - DMbaseline and 30 dayschange (post-treatment - pre-treatment) in Ocular perfusion pressure in patients with type 2 diabetes
Change in Ocular Perfusion Pressure - No DMbaseline and 30 dayschange (post-treatment - pre-treatment) in Ocular perfusion pressure in patients without type 2 diabetes
Change in Nasal Posterior Ciliary Artery Peak Systolic Blood Flow Velocity (cm/s)baseline and 30 dayschange (post-treatment - pre-treatment) in nasal posterior ciliary artery peak systolic blood flow velocity (cm/s) using color Doppler imaging (CDI)
Change in Superior Retinal Capillary Blood Flow (% Zero Pixels) - No DMbaseline and 30 dayschange (post-treatment - pre-treatment) in superior retinal capillary blood flow (% zero pixels or % avascular tissue) using Heidelberg Retinal Flowmeter (HRF) in patients without type 2 diabetes
Change in Inferior Retinal Capillary Blood Flow (% Zero Pixels) - DMbaseline and 30 dayschange (post-treatment - pre-treatment) in inferior retinal capillary blood flow (% zero pixels or % avascular tissue) using Heidelberg Retinal Flowmeter (HRF) in patients with type 2 diabetes
Change in Inferior Retinal Capillary Blood Flow (% Zero Pixels) - No DMbaseline and 30 dayschange (post-treatment - pre-treatment) in inferior retinal capillary blood flow (% zero pixels or % avascular tissue) using Heidelberg Retinal Flowmeter (HRF) in patients without type 2 diabetes
Change in Superior Retinal Capillary Blood Flow (% Zero Pixels) - DMbaseline and 30 dayschange (post-treatment - pre-treatment) in superior retinal capillary blood flow (% zero pixels or % avascular tissue) using Heidelberg Retinal Flowmeter (HRF) in patients with type 2 diabetes
Change in Temporal Posterior Ciliary Artery Peak Systolic Blood Flow Velocity (cm/s)baseline and 30 dayschange (post-treatment - pre-treatment) in temporal posterior ciliary artery peak systolic blood flow velocity (cm/s) using color Doppler imaging (CDI)

Countries

United States

Participant flow

Recruitment details

47 patients were recruited for the study

Pre-assignment details

1 subject started but did not complete the baseline examination and was not randomized to either treatment arm.

Participants by arm

ArmCount
Participants Completing Study
Participants who completed both arms of the crossover study
42
Total42

Baseline characteristics

CharacteristicParticipants Completing Study
Age, Continuous67 years
STANDARD_DEVIATION 11
Diabetes (Type 2)
no
21 participants
Diabetes (Type 2)
yes
21 participants
Duration of OAG15 years
STANDARD_DEVIATION 8
Hypertension
no
26 participants
Hypertension
yes
16 participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
0 Participants
Race (NIH/OMB)
Black or African American
7 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
1 Participants
Race (NIH/OMB)
White
34 Participants
Region of Enrollment
United States
42 participants
Sex: Female, Male
Female
24 Participants
Sex: Female, Male
Male
18 Participants
Study Eye
left
18 participants
Study Eye
right
24 participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
0 / 210 / 21
serious
Total, serious adverse events
0 / 210 / 21

Outcome results

Primary

Change in Inferior Retinal Capillary Blood Flow (% Zero Pixels)

change (post-treatment - pre-treatment) in inferior retinal capillary blood flow (% zero pixels or % avascular tissue) using Heidelberg Retinal Flowmeter (HRF)

Time frame: baseline and 30 days

Population: patients completing both study periods

ArmMeasureValue (MEAN)Dispersion
Dietary Supplement With AntioxidantsChange in Inferior Retinal Capillary Blood Flow (% Zero Pixels)-0.016 % zero pixelsStandard Error 0.007
PlaceboChange in Inferior Retinal Capillary Blood Flow (% Zero Pixels)0.009 % zero pixelsStandard Error 0.007
p-value: 0.0249paired t-test, 2-sided
Primary

Change in Superior Retinal Capillary Blood Flow (% Zero Pixels)

change (post-treatment - pre-treatment) in superior retinal capillary blood flow (% zero pixels or % avascular tissue) using Heidelberg Retinal Flowmeter (HRF)

Time frame: baseline and 30 days

Population: patients completing both study periods

ArmMeasureValue (MEAN)Dispersion
Dietary Supplement With AntioxidantsChange in Superior Retinal Capillary Blood Flow (% Zero Pixels)-0.026 % zero pixelsStandard Error 0.008
PlaceboChange in Superior Retinal Capillary Blood Flow (% Zero Pixels)0.011 % zero pixelsStandard Error 0.007
p-value: 0.0016paired t-test, 2-sided
Secondary

Change in Central Retinal Artery Blood Flow - Vascular Resistance (Ratio)

change (post-treatment - pre-treatment) in central retinal artery blood flow - vascular resistance (ratio) using color Doppler imaging (CDI)

Time frame: baseline and 30 days

Population: patients completing both study periods

ArmMeasureValue (MEAN)Dispersion
Dietary Supplement With AntioxidantsChange in Central Retinal Artery Blood Flow - Vascular Resistance (Ratio)-0.018 ratioStandard Error 0.006
PlaceboChange in Central Retinal Artery Blood Flow - Vascular Resistance (Ratio)0.000 ratioStandard Error 0.006
p-value: 0.0482paired t-test, 2-sided
Secondary

Change in Central Retinal Artery Blood Flow - Vascular Resistance (Ratio) - DM

change (post-treatment - pre-treatment) in central retinal artery blood flow - vascular resistance (ratio) using color Doppler imaging (CDI) in patients with type 2 diabetes

Time frame: baseline and 30 days

Population: patients completing both study periods

ArmMeasureValue (MEAN)Dispersion
Dietary Supplement With AntioxidantsChange in Central Retinal Artery Blood Flow - Vascular Resistance (Ratio) - DM-0.019 ratioStandard Error 0.01
PlaceboChange in Central Retinal Artery Blood Flow - Vascular Resistance (Ratio) - DM-0.004 ratioStandard Error 0.011
p-value: 0.3414paired t-test, 2-sided
Secondary

Change in Central Retinal Artery Blood Flow - Vascular Resistance (Ratio) - No DM

change (post-treatment - pre-treatment) in central retinal artery blood flow - vascular resistance (ratio) using color Doppler imaging (CDI) in patients without type 2 diabetes

Time frame: baseline and 30 days

Population: patients completing both study periods

ArmMeasureValue (MEAN)Dispersion
Dietary Supplement With AntioxidantsChange in Central Retinal Artery Blood Flow - Vascular Resistance (Ratio) - No DM-0.017 ratioStandard Error 0.007
PlaceboChange in Central Retinal Artery Blood Flow - Vascular Resistance (Ratio) - No DM0.004 ratioStandard Error 0.007
p-value: 0.033paired t-test, 2-sided
Secondary

Change in Central Retinal Artery End Diastolic Blood Flow Velocity (cm/s)

change (post-treatment - pre-treatment) in central retinal artery end diastolic blood flow velocity (cm/s) using color Doppler imaging (CDI)

Time frame: baseline and 30 days

Population: patients completing both study periods

ArmMeasureValue (MEAN)Dispersion
Dietary Supplement With AntioxidantsChange in Central Retinal Artery End Diastolic Blood Flow Velocity (cm/s)0.27 cm/sStandard Error 0.05
PlaceboChange in Central Retinal Artery End Diastolic Blood Flow Velocity (cm/s)-0.11 cm/sStandard Error 0.06
p-value: <0.0001paired t-test, 2-sided
Secondary

Change in Central Retinal Artery End Diastolic Blood Flow Velocity (cm/s) - DM

change (post-treatment - pre-treatment) in central retinal artery end diastolic blood flow velocity (cm/s) using color Doppler imaging (CDI) in patients with type 2 diabetes

Time frame: baseline and 30 days

Population: patients completing both study periods

ArmMeasureValue (MEAN)Dispersion
Dietary Supplement With AntioxidantsChange in Central Retinal Artery End Diastolic Blood Flow Velocity (cm/s) - DM0.29 cm/sStandard Error 0.06
PlaceboChange in Central Retinal Artery End Diastolic Blood Flow Velocity (cm/s) - DM-0.08 cm/sStandard Error 0.11
p-value: 0.0119paired t-test, 2-sided
Secondary

Change in Central Retinal Artery End Diastolic Blood Flow Velocity (cm/s) - No DM

change (post-treatment - pre-treatment) in central retinal artery end diastolic blood flow velocity (cm/s) using color Doppler imaging (CDI) in patients without type 2 diabetes

Time frame: baseline and 30 days

Population: patients completing both study periods

ArmMeasureValue (MEAN)Dispersion
Dietary Supplement With AntioxidantsChange in Central Retinal Artery End Diastolic Blood Flow Velocity (cm/s) - No DM0.26 cm/sStandard Error 0.07
PlaceboChange in Central Retinal Artery End Diastolic Blood Flow Velocity (cm/s) - No DM-0.14 cm/sStandard Error 0.07
p-value: <0.0001paired t-test, 2-sided
Secondary

Change in Central Retinal Artery Peak Systolic Blood Flow Velocity (cm/s)

change (post-treatment - pre-treatment) in central retinal artery peak systolic blood flow velocity (cm/s) using color Doppler imaging (CDI)

Time frame: baseline and 30 days

Population: patients completing both study periods

ArmMeasureValue (MEAN)Dispersion
Dietary Supplement With AntioxidantsChange in Central Retinal Artery Peak Systolic Blood Flow Velocity (cm/s)0.54 cm/sStandard Error 0.15
PlaceboChange in Central Retinal Artery Peak Systolic Blood Flow Velocity (cm/s)-0.43 cm/sStandard Error 0.15
p-value: <0.0001paired t-test, 2-sidede
Secondary

Change in Central Retinal Artery Peak Systolic Blood Flow Velocity (cm/s) - DM

change (post-treatment - pre-treatment) in central retinal artery peak systolic blood flow velocity (cm/s) using color Doppler imaging (CDI) in patients with type 2 diabetes

Time frame: baseline and 30 days

Population: patients completing both study periods

ArmMeasureValue (MEAN)Dispersion
Dietary Supplement With AntioxidantsChange in Central Retinal Artery Peak Systolic Blood Flow Velocity (cm/s) - DM0.58 cm/sStandard Error 0.2
PlaceboChange in Central Retinal Artery Peak Systolic Blood Flow Velocity (cm/s) - DM-0.44 cm/sStandard Error 0.24
p-value: 0.0094paired t-test, 2-sided
Secondary

Change in Central Retinal Artery Peak Systolic Blood Flow Velocity (cm/s) - No DM

change (post-treatment - pre-treatment) in central retinal artery peak systolic blood flow velocity (cm/s) using color Doppler imaging (CDI) in patients without type 2 diabetes

Time frame: baseline and 30 days

Population: patients completing both study periods

ArmMeasureValue (MEAN)Dispersion
Dietary Supplement With AntioxidantsChange in Central Retinal Artery Peak Systolic Blood Flow Velocity (cm/s) - No DM0.51 cm/sStandard Error 0.23
PlaceboChange in Central Retinal Artery Peak Systolic Blood Flow Velocity (cm/s) - No DM-0.41 cm/sStandard Error 0.2
p-value: 0.0009paired t-test, 2-sided
Secondary

Change in Inferior Retinal Capillary Blood Flow (% Zero Pixels) - DM

change (post-treatment - pre-treatment) in inferior retinal capillary blood flow (% zero pixels or % avascular tissue) using Heidelberg Retinal Flowmeter (HRF) in patients with type 2 diabetes

Time frame: baseline and 30 days

Population: patients completing both study periods

ArmMeasureValue (MEAN)Dispersion
Dietary Supplement With AntioxidantsChange in Inferior Retinal Capillary Blood Flow (% Zero Pixels) - DM-0.005 % zero pixelsStandard Error 0.009
PlaceboChange in Inferior Retinal Capillary Blood Flow (% Zero Pixels) - DM0.000 % zero pixelsStandard Error 0.008
p-value: 0.6941paired t-test
Secondary

Change in Inferior Retinal Capillary Blood Flow (% Zero Pixels) - No DM

change (post-treatment - pre-treatment) in inferior retinal capillary blood flow (% zero pixels or % avascular tissue) using Heidelberg Retinal Flowmeter (HRF) in patients without type 2 diabetes

Time frame: baseline and 30 days

Population: patients completing both study periods

ArmMeasureValue (MEAN)Dispersion
Dietary Supplement With AntioxidantsChange in Inferior Retinal Capillary Blood Flow (% Zero Pixels) - No DM-0.028 % zero pixelsStandard Error 0.009
PlaceboChange in Inferior Retinal Capillary Blood Flow (% Zero Pixels) - No DM0.018 % zero pixelsStandard Error 0.01
p-value: 0.0138paired t-test, 2-sided
Secondary

Change in Nasal Posterior Artery Blood Flow - Vascular Resistance (Ratio) - DM

change (post-treatment - pre-treatment) in nasal posterior artery blood flow - vascular resistance (ratio) using color Doppler imaging (CDI) in patients with type 2 diabetes

Time frame: baseline and 30 days

Population: patients completing both study periods

ArmMeasureValue (MEAN)Dispersion
Dietary Supplement With AntioxidantsChange in Nasal Posterior Artery Blood Flow - Vascular Resistance (Ratio) - DM-0.005 ratioStandard Error 0.007
PlaceboChange in Nasal Posterior Artery Blood Flow - Vascular Resistance (Ratio) - DM0.005 ratioStandard Error 0.007
p-value: 0.3326paired t-test, 2-sided
Secondary

Change in Nasal Posterior Artery Blood Flow - Vascular Resistance (Ratio) - No DM

change (post-treatment - pre-treatment) in nasal posterior artery blood flow - vascular resistance (ratio) using color Doppler imaging (CDI) in patients without type 2 diabetes

Time frame: baseline and 30 days

Population: patients completing both study periods

ArmMeasureValue (MEAN)Dispersion
Dietary Supplement With AntioxidantsChange in Nasal Posterior Artery Blood Flow - Vascular Resistance (Ratio) - No DM-0.022 ratioStandard Error 0.01
PlaceboChange in Nasal Posterior Artery Blood Flow - Vascular Resistance (Ratio) - No DM0.005 ratioStandard Error 0.007
p-value: 0.0348paired t-test, 2-sided
Secondary

Change in Nasal Posterior Ciliary Artery Blood Flow - Vascular Resistance (Ratio)

change (post-treatment - pre-treatment) in nasal posterior ciliary artery blood flow - vascular resistance (ratio) using color Doppler imaging (CDI)

Time frame: baseline and 30 days

Population: patients completing both study periods

ArmMeasureValue (MEAN)Dispersion
Dietary Supplement With AntioxidantsChange in Nasal Posterior Ciliary Artery Blood Flow - Vascular Resistance (Ratio)-0.013 ratioStandard Error 0.006
PlaceboChange in Nasal Posterior Ciliary Artery Blood Flow - Vascular Resistance (Ratio)0.005 ratioStandard Error 0.005
p-value: 0.023paired t-test, 2-sided
Secondary

Change in Nasal Posterior Ciliary Artery End Diastolic Blood Flow Velocity (cm/s)

change (post-treatment - pre-treatment) in nasal posterior ciliary artery end diastolic blood flow velocity (cm/s) using color Doppler imaging (CDI)

Time frame: baseline and 30 days

Population: patients completing both study periods

ArmMeasureValue (MEAN)Dispersion
Dietary Supplement With AntioxidantsChange in Nasal Posterior Ciliary Artery End Diastolic Blood Flow Velocity (cm/s)0.17 cm/sStandard Error 0.05
PlaceboChange in Nasal Posterior Ciliary Artery End Diastolic Blood Flow Velocity (cm/s)-0.07 cm/sStandard Error 0.05
p-value: 0.0024paired t-test, 2-sided
Secondary

Change in Nasal Posterior Ciliary Artery End Diastolic Blood Flow Velocity (cm/s) - DM

change (post-treatment - pre-treatment) in nasal posterior ciliary artery end diastolic blood flow velocity (cm/s) using color Doppler imaging (CDI) in patients with type 2 diabetes

Time frame: baseline and 30 days

Population: patients completing both study periods

ArmMeasureValue (MEAN)Dispersion
Dietary Supplement With AntioxidantsChange in Nasal Posterior Ciliary Artery End Diastolic Blood Flow Velocity (cm/s) - DM0.16 cm/sStandard Error 0.07
PlaceboChange in Nasal Posterior Ciliary Artery End Diastolic Blood Flow Velocity (cm/s) - DM-0.16 cm/sStandard Error 0.08
p-value: 0.0137paired t-test, 2-sided
Secondary

Change in Nasal Posterior Ciliary Artery End Diastolic Blood Flow Velocity (cm/s) - No DM

change (post-treatment - pre-treatment) in nasal posterior ciliary artery end diastolic blood flow velocity (cm/s) using color Doppler imaging (CDI) in patients without type 2 diabetes

Time frame: baseline and 30 days

Population: patients completing both study periods

ArmMeasureValue (MEAN)Dispersion
Dietary Supplement With AntioxidantsChange in Nasal Posterior Ciliary Artery End Diastolic Blood Flow Velocity (cm/s) - No DM0.18 cm/sStandard Error 0.07
PlaceboChange in Nasal Posterior Ciliary Artery End Diastolic Blood Flow Velocity (cm/s) - No DM0.01 cm/sStandard Error 0.07
p-value: 0.0866paired t-test, 2-sided
Secondary

Change in Nasal Posterior Ciliary Artery Peak Systolic Blood Flow Velocity (cm/s)

change (post-treatment - pre-treatment) in nasal posterior ciliary artery peak systolic blood flow velocity (cm/s) using color Doppler imaging (CDI)

Time frame: baseline and 30 days

Population: patients completing both study periods

ArmMeasureValue (MEAN)Dispersion
Dietary Supplement With AntioxidantsChange in Nasal Posterior Ciliary Artery Peak Systolic Blood Flow Velocity (cm/s)0.30 cm/sStandard Error 0.14
PlaceboChange in Nasal Posterior Ciliary Artery Peak Systolic Blood Flow Velocity (cm/s)-0.16 cm/sStandard Error 0.16
p-value: 0.0476paired t-test, 2-sided
Secondary

Change in Nasal Posterior Ciliary Artery Peak Systolic Blood Flow Velocity (cm/s) - DM

change (post-treatment - pre-treatment) in nasal posterior ciliary artery peak systolic blood flow velocity (cm/s) using color Doppler imaging (CDI) in patients with type 2 diabetes

Time frame: baseline and 30 days

Population: patients completing both study periods

ArmMeasureValue (MEAN)Dispersion
Dietary Supplement With AntioxidantsChange in Nasal Posterior Ciliary Artery Peak Systolic Blood Flow Velocity (cm/s) - DM0.56 cm/sStandard Error 0.22
PlaceboChange in Nasal Posterior Ciliary Artery Peak Systolic Blood Flow Velocity (cm/s) - DM-0.46 cm/sStandard Error 0.23
p-value: 0.0067paired t-test, 2-sided
Secondary

Change in Nasal Posterior Ciliary Artery Peak Systolic Blood Flow Velocity (cm/s) - No DM

change (post-treatment - pre-treatment) in nasal posterior ciliary artery peak systolic blood flow velocity (cm/s) using color Doppler imaging (CDI) in patients without type 2 diabetes

Time frame: baseline and 30 days

Population: patients completing both study periods

ArmMeasureValue (MEAN)Dispersion
Dietary Supplement With AntioxidantsChange in Nasal Posterior Ciliary Artery Peak Systolic Blood Flow Velocity (cm/s) - No DM0.03 cm/sStandard Error 0.16
PlaceboChange in Nasal Posterior Ciliary Artery Peak Systolic Blood Flow Velocity (cm/s) - No DM0.13 cm/sStandard Error 0.22
p-value: 0.6938paired t-test, 2-sided
Secondary

Change in Ocular Perfusion Pressure

change (post-treatment - pre-treatment) in ocular perfusion pressure (2/3 Mean arterial pressure - intraocular pressure)

Time frame: baseline and 30 days

Population: patients completing both study periods

ArmMeasureValue (MEAN)Dispersion
Dietary Supplement With AntioxidantsChange in Ocular Perfusion Pressure1.5 mm HgStandard Error 0.9
PlaceboChange in Ocular Perfusion Pressure1.4 mm HgStandard Error 1.2
p-value: 0.9147paired t-test, 2-sided
Secondary

Change in Ocular Perfusion Pressure - DM

change (post-treatment - pre-treatment) in Ocular perfusion pressure in patients with type 2 diabetes

Time frame: baseline and 30 days

Population: patients completing both study periods

ArmMeasureValue (MEAN)Dispersion
Dietary Supplement With AntioxidantsChange in Ocular Perfusion Pressure - DM0.2 mm HgStandard Error 1.2
PlaceboChange in Ocular Perfusion Pressure - DM-1.1 mm HgStandard Error 1.4
p-value: 0.447paired t-test, 2-sided
Secondary

Change in Ocular Perfusion Pressure - No DM

change (post-treatment - pre-treatment) in Ocular perfusion pressure in patients without type 2 diabetes

Time frame: baseline and 30 days

Population: patients completing both study periods

ArmMeasureValue (MEAN)Dispersion
Dietary Supplement With AntioxidantsChange in Ocular Perfusion Pressure - No DM2.8 mm HgStandard Error 1.4
PlaceboChange in Ocular Perfusion Pressure - No DM3.8 mm HgStandard Error 1.7
p-value: 0.6382paired t-test, 2-sided
Secondary

Change in Ophthalmic Artery Blood Flow - Vascular Resistance (Ratio)

change (post-treatment - pre-treatment) in ophthalmic artery blood flow - vascular resistance (ratio) using color Doppler imaging (CDI)

Time frame: baseline and 30 days

Population: patients completing both study periods

ArmMeasureValue (MEAN)Dispersion
Dietary Supplement With AntioxidantsChange in Ophthalmic Artery Blood Flow - Vascular Resistance (Ratio)-0.007 ratioStandard Error 0.004
PlaceboChange in Ophthalmic Artery Blood Flow - Vascular Resistance (Ratio)-0.005 ratioStandard Error 0.006
p-value: 0.8191paired t-test, 2-sided
Secondary

Change in Ophthalmic Artery Blood Flow - Vascular Resistance (Ratio) - DM

change (post-treatment - pre-treatment) in ophthalmic artery blood flow - vascular resistance (ratio) using color Doppler imaging (CDI) in patients with type 2 diabetes

Time frame: baseline and 30 days

Population: patients completing both study periods

ArmMeasureValue (MEAN)Dispersion
Dietary Supplement With AntioxidantsChange in Ophthalmic Artery Blood Flow - Vascular Resistance (Ratio) - DM-0.008 ratioStandard Error 0.007
PlaceboChange in Ophthalmic Artery Blood Flow - Vascular Resistance (Ratio) - DM-0.005 ratioStandard Error 0.009
p-value: 0.81paired t-test, 2-sided
Secondary

Change in Ophthalmic Artery Blood Flow - Vascular Resistance (Ratio) - No DM

change (post-treatment - pre-treatment) in ophthalmic artery blood flow - vascular resistance (ratio) using color Doppler imaging (CDI) in patients without type 2 diabetes

Time frame: baseline and 30 days

Population: patients completing both study periods

ArmMeasureValue (MEAN)Dispersion
Dietary Supplement With AntioxidantsChange in Ophthalmic Artery Blood Flow - Vascular Resistance (Ratio) - No DM-0.005 ratioStandard Error 0.006
PlaceboChange in Ophthalmic Artery Blood Flow - Vascular Resistance (Ratio) - No DM-0.004 ratioStandard Error 0.009
p-value: 0.9556paired t-test, 2-sided
Secondary

Change in Ophthalmic Artery End Diastolic Blood Flow Velocity (cm/s)

change (post-treatment - pre-treatment) in ophthalmic artery end diastolic blood flow velocity (cm/s) using color Doppler imaging (CDI)

Time frame: baseline and 30 days

Population: patients completing both study periods

ArmMeasureValue (MEAN)Dispersion
Dietary Supplement With AntioxidantsChange in Ophthalmic Artery End Diastolic Blood Flow Velocity (cm/s)0.35 cm/sStandard Error 0.13
PlaceboChange in Ophthalmic Artery End Diastolic Blood Flow Velocity (cm/s)-0.17 cm/sStandard Error 0.17
p-value: 0.0208paired t-test, 2-sided
Secondary

Change in Ophthalmic Artery End Diastolic Blood Flow Velocity (cm/s) - DM

change (post-treatment - pre-treatment) in ophthalmic artery end diastolic blood flow velocity (cm/s) using color Doppler imaging (CDI) in patients with type 2 diabetes

Time frame: baseline and 30 days

Population: patients completing both study periods

ArmMeasureValue (MEAN)Dispersion
Dietary Supplement With AntioxidantsChange in Ophthalmic Artery End Diastolic Blood Flow Velocity (cm/s) - DM0.60 cm/sStandard Error 0.19
PlaceboChange in Ophthalmic Artery End Diastolic Blood Flow Velocity (cm/s) - DM-0.18 cm/sStandard Error 0.24
p-value: 0.0323paired t-test, 2-sided
Secondary

Change in Ophthalmic Artery End Diastolic Blood Flow Velocity (cm/s) - No DM

change (post-treatment - pre-treatment) in ophthalmic artery end diastolic blood flow velocity (cm/s) using color Doppler imaging (CDI) in patients without type 2 diabetes

Time frame: baseline and 30 days

Population: patients completing both study periods

ArmMeasureValue (MEAN)Dispersion
Dietary Supplement With AntioxidantsChange in Ophthalmic Artery End Diastolic Blood Flow Velocity (cm/s) - No DM0.09 cm/sStandard Error 0.18
PlaceboChange in Ophthalmic Artery End Diastolic Blood Flow Velocity (cm/s) - No DM-0.16 cm/sStandard Error 0.24
p-value: 0.344paired t-test, 2-sided
Secondary

Change in Ophthalmic Artery Peak Systolic Blood Flow Velocity (cm/s)

change (post-treatment - pre-treatment) in ophthalmic artery peak systolic blood flow velocity (cm/s) using color Doppler imaging (CDI)

Time frame: baseline and 30 days

Population: patients completing both study periods

ArmMeasureValue (MEAN)Dispersion
Dietary Supplement With AntioxidantsChange in Ophthalmic Artery Peak Systolic Blood Flow Velocity (cm/s)0.74 cm/sStandard Error 0.41
PlaceboChange in Ophthalmic Artery Peak Systolic Blood Flow Velocity (cm/s)-0.94 cm/sStandard Error 0.38
p-value: 0.007paired t-test, 2-sided
Secondary

Change in Ophthalmic Artery Peak Systolic Blood Flow Velocity (cm/s) - DM

change (post-treatment - pre-treatment) in ophthalmic artery peak systolic blood flow velocity (cm/s) using color Doppler imaging (CDI) in patients with type 2 diabetes

Time frame: baseline and 30 days

Population: patients completing both study periods

ArmMeasureValue (MEAN)Dispersion
Dietary Supplement With AntioxidantsChange in Ophthalmic Artery Peak Systolic Blood Flow Velocity (cm/s) - DM1.71 cm/sStandard Error 0.56
PlaceboChange in Ophthalmic Artery Peak Systolic Blood Flow Velocity (cm/s) - DM-0.84 cm/sStandard Error 0.48
p-value: 0.0063paired t-test, 2-sided
Secondary

Change in Ophthalmic Artery Peak Systolic Blood Flow Velocity (cm/s) - No DM

change (post-treatment - pre-treatment) in ophthalmic artery peak systolic blood flow velocity (cm/s) using color Doppler imaging (CDI) in patients without type 2 diabetes

Time frame: baseline and 30 days

Population: patients completing both study periods

ArmMeasureValue (MEAN)Dispersion
Dietary Supplement With AntioxidantsChange in Ophthalmic Artery Peak Systolic Blood Flow Velocity (cm/s) - No DM-0.24 cm/sStandard Error 0.53
PlaceboChange in Ophthalmic Artery Peak Systolic Blood Flow Velocity (cm/s) - No DM-1.03 cm/sStandard Error 0.6
p-value: 0.3347paired t-test, 2-sided
Secondary

Change in Superior Retinal Capillary Blood Flow (% Zero Pixels) - DM

change (post-treatment - pre-treatment) in superior retinal capillary blood flow (% zero pixels or % avascular tissue) using Heidelberg Retinal Flowmeter (HRF) in patients with type 2 diabetes

Time frame: baseline and 30 days

Population: patients completing both study periods

ArmMeasureValue (MEAN)Dispersion
Dietary Supplement With AntioxidantsChange in Superior Retinal Capillary Blood Flow (% Zero Pixels) - DM-0.031 % zero pixelsStandard Error 0.009
PlaceboChange in Superior Retinal Capillary Blood Flow (% Zero Pixels) - DM0.012 % zero pixelsStandard Error 0.01
p-value: 0.0026paird t-test, 2-sided
Secondary

Change in Superior Retinal Capillary Blood Flow (% Zero Pixels) - No DM

change (post-treatment - pre-treatment) in superior retinal capillary blood flow (% zero pixels or % avascular tissue) using Heidelberg Retinal Flowmeter (HRF) in patients without type 2 diabetes

Time frame: baseline and 30 days

Population: patients completing both study periods

ArmMeasureValue (MEAN)Dispersion
Dietary Supplement With AntioxidantsChange in Superior Retinal Capillary Blood Flow (% Zero Pixels) - No DM-0.021 % zero pixelsStandard Error 0.014
PlaceboChange in Superior Retinal Capillary Blood Flow (% Zero Pixels) - No DM0.010 % zero pixelsStandard Error 0.009
p-value: 0.1045paired t-test, 2-sided
Secondary

Change in Temporal Posterior Artery Blood Flow - Vascular Resistance (Ratio) - DM

change (post-treatment - pre-treatment) in temporal posterior artery blood flow - vascular resistance (ratio) using color Doppler imaging (CDI) in patients with type 2 diabetes

Time frame: baseline and 30 days

Population: patients completing both study periods

ArmMeasureValue (MEAN)Dispersion
Dietary Supplement With AntioxidantsChange in Temporal Posterior Artery Blood Flow - Vascular Resistance (Ratio) - DM-0.006 ratioStandard Error 0.009
PlaceboChange in Temporal Posterior Artery Blood Flow - Vascular Resistance (Ratio) - DM0.010 ratioStandard Error 0.007
p-value: 0.2089paired t-test, 2-sided
Secondary

Change in Temporal Posterior Artery Blood Flow - Vascular Resistance (Ratio) - No DM

change (post-treatment - pre-treatment) in temporal posterior artery blood flow - vascular resistance (ratio) using color Doppler imaging (CDI) in patients without type 2 diabetes

Time frame: baseline and 30 days

Population: patients completing both study periods

ArmMeasureValue (MEAN)Dispersion
Dietary Supplement With AntioxidantsChange in Temporal Posterior Artery Blood Flow - Vascular Resistance (Ratio) - No DM-0.012 ratioStandard Error 0.009
PlaceboChange in Temporal Posterior Artery Blood Flow - Vascular Resistance (Ratio) - No DM-0.001 ratioStandard Error 0.007
p-value: 0.3738paired t-test, 2-sided
Secondary

Change in Temporal Posterior Ciliary Artery Blood Flow - Vascular Resistance (Ratio)

change (post-treatment - pre-treatment) in temporal posterior ciliary artery blood flow - vascular resistance (ratio) using color Doppler imaging (CDI)

Time frame: baseline and 30 days

Population: patients completing both study periods

ArmMeasureValue (MEAN)Dispersion
Dietary Supplement With AntioxidantsChange in Temporal Posterior Ciliary Artery Blood Flow - Vascular Resistance (Ratio)-0.009 ratioStandard Error 0.006
PlaceboChange in Temporal Posterior Ciliary Artery Blood Flow - Vascular Resistance (Ratio)0.004 ratioStandard Error 0.005
p-value: 0.1202paired t-test, 2-sided
Secondary

Change in Temporal Posterior Ciliary Artery End Diastolic Blood Flow Velocity (cm/s)

change (post-treatment - pre-treatment) in temporal posterior ciliary artery end diastolic blood flow velocity (cm/s) using color Doppler imaging (CDI)

Time frame: baseline and 30 days

Population: patients completing both study periods

ArmMeasureValue (MEAN)Dispersion
Dietary Supplement With AntioxidantsChange in Temporal Posterior Ciliary Artery End Diastolic Blood Flow Velocity (cm/s)0.15 cm/sStandard Error 0.05
PlaceboChange in Temporal Posterior Ciliary Artery End Diastolic Blood Flow Velocity (cm/s)-0.06 cm/sStandard Error 0.05
p-value: 0.0081paired t-test, 2-sided
Secondary

Change in Temporal Posterior Ciliary Artery End Diastolic Blood Flow Velocity (cm/s) - DM

change (post-treatment - pre-treatment) in temporal posterior ciliary artery end diastolic blood flow velocity (cm/s) using color Doppler imaging (CDI) in patients with type 2 diabetes

Time frame: baseline and 30 days

Population: patients completing both study periods

ArmMeasureValue (MEAN)Dispersion
Dietary Supplement With AntioxidantsChange in Temporal Posterior Ciliary Artery End Diastolic Blood Flow Velocity (cm/s) - DM0.10 cm/sStandard Error 0.07
PlaceboChange in Temporal Posterior Ciliary Artery End Diastolic Blood Flow Velocity (cm/s) - DM-0.13 cm/sStandard Error 0.07
p-value: 0.0656paired t-test, 2-sided
Secondary

Change in Temporal Posterior Ciliary Artery End Diastolic Blood Flow Velocity (cm/s) - No DM

change (post-treatment - pre-treatment) in temporal posterior ciliary artery end diastolic blood flow velocity (cm/s) using color Doppler imaging (CDI) in patients without type 2 diabetes

Time frame: baseline and 30 days

Population: patients completing both study periods

ArmMeasureValue (MEAN)Dispersion
Dietary Supplement With AntioxidantsChange in Temporal Posterior Ciliary Artery End Diastolic Blood Flow Velocity (cm/s) - No DM0.20 cm/sStandard Error 0.08
PlaceboChange in Temporal Posterior Ciliary Artery End Diastolic Blood Flow Velocity (cm/s) - No DM0.01 cm/sStandard Error 0.08
p-value: 0.0626paired t-test, 2-sided
Secondary

Change in Temporal Posterior Ciliary Artery Peak Systolic Blood Flow Velocity (cm/s)

change (post-treatment - pre-treatment) in temporal posterior ciliary artery peak systolic blood flow velocity (cm/s) using color Doppler imaging (CDI)

Time frame: baseline and 30 days

Population: patients completing both study periods

ArmMeasureValue (MEAN)Dispersion
Dietary Supplement With AntioxidantsChange in Temporal Posterior Ciliary Artery Peak Systolic Blood Flow Velocity (cm/s)0.31 cm/sStandard Error 0.16
PlaceboChange in Temporal Posterior Ciliary Artery Peak Systolic Blood Flow Velocity (cm/s)-0.14 cm/sStandard Error 0.15
p-value: 0.0352paired t-test, 2-sided
Secondary

Change in Temporal Posterior Ciliary Artery Peak Systolic Blood Flow Velocity (cm/s) - DM

change (post-treatment - pre-treatment) in temporal posterior ciliary artery peak systolic blood flow velocity (cm/s) using color Doppler imaging (CDI) in patients with type 2 diabetes

Time frame: baseline and 30 days

Population: patients completing both study periods

ArmMeasureValue (MEAN)Dispersion
Dietary Supplement With AntioxidantsChange in Temporal Posterior Ciliary Artery Peak Systolic Blood Flow Velocity (cm/s) - DM0.24 cm/sStandard Error 0.19
PlaceboChange in Temporal Posterior Ciliary Artery Peak Systolic Blood Flow Velocity (cm/s) - DM-0.32 cm/sStandard Error 0.21
p-value: 0.0805paired t-test, 2-sided
Secondary

Change in Temporal Posterior Ciliary Artery Peak Systolic Blood Flow Velocity (cm/s) - No DM

change (post-treatment - pre-treatment) in temporal posterior ciliary artery peak systolic blood flow velocity (cm/s) using color Doppler imaging (CDI) in patients without type 2 diabetes

Time frame: baseline and 30 days

Population: patients completing both study periods

ArmMeasureValue (MEAN)Dispersion
Dietary Supplement With AntioxidantsChange in Temporal Posterior Ciliary Artery Peak Systolic Blood Flow Velocity (cm/s) - No DM0.38 cm/sStandard Error 0.27
PlaceboChange in Temporal Posterior Ciliary Artery Peak Systolic Blood Flow Velocity (cm/s) - No DM0.03 cm/sStandard Error 0.21
p-value: 0.2451paired t-test, 2-sided

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026