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Surgeon Experience ReSTOR A +4 Intraocular Lens (IOL)

Surgeon Experience ReSTOR Aspheric +4 Intraocular Lens (IOL)

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT00733512
Enrollment
146
Registered
2008-08-13
Start date
2007-06-30
Completion date
2008-03-31
Last updated
2017-03-27

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

Conditions

Cataract

Keywords

ReSTOR Aspheric +4 IOL

Brief summary

To collect visual outcome data post AcrySof ReSTOR Aspheric +4 implantation from surgeons throughout the United States.

Interventions

DEVICEReSTOR

Patients were implanted with the AcrySof ReSTOR Aspheric +4 Intraocular Lens (IOL) in one or both eyes for treatment of cataract.

Sponsors

Alcon Research
Lead SponsorINDUSTRY

Study design

Observational model
COHORT
Time perspective
RETROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* operable cataracts; candidate for presbyopic correcting intraocular lens (IOL)

Exclusion criteria

* ocular comorbidities confounding study outcomes

Design outcomes

Primary

MeasureTime frameDescription
Visual Acuity1 week to 10 monthsUncorrected Visual Acuity (UCVA) and Best Spectacle Corrected Visual Acuity (BSCVA) at distance (4 meters) and near at preferred distance and measured by logMAR. LogMAR is the logarithm of the minimum angle of resolution. It is a unit of measure for visual acuity (VA). A lower logMAR value indicates better visual acuity.

Secondary

MeasureTime frameDescription
Contrast Sensitivity1 week to 10 monthsContrast sensitivity is the measurement of how faded an image may become before it is indistinguishable. Contrast sensitivity was measured in photopic, mesopic, and mesopic with glare conditions at the following spatial frequencies: 1.5, 3, 6, 12, and 18 cpd (cycles per degree). Contrast sensitivity is measured in log units. A higher value for the logarithmic units translates to better contrast sensitivity.

Countries

United States

Participant flow

Recruitment details

Subjects 18 years of age and older of either sex and any race. Diagnosis of cataracts in one or both eyes.

Pre-assignment details

Subjects eligibility was determined at the preoperative visit.

Participants by arm

ArmCount
ReSTOR
Implantation with the AcrySof ReSTOR Aspheric +4 Intraocular Lens (IOL)
146
Total146

Baseline characteristics

CharacteristicReSTOR
Age, Customized
<=18 years
0 participants
Age, Customized
>=65 years
59 participants
Age, Customized
Between 18 and 65 years
65 participants
Sex/Gender, Customized
Female
79 participants
Sex/Gender, Customized
Male
54 participants

Adverse events

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

Outcome results

Primary

Visual Acuity

Uncorrected Visual Acuity (UCVA) and Best Spectacle Corrected Visual Acuity (BSCVA) at distance (4 meters) and near at preferred distance and measured by logMAR. LogMAR is the logarithm of the minimum angle of resolution. It is a unit of measure for visual acuity (VA). A lower logMAR value indicates better visual acuity.

Time frame: 1 week to 10 months

ArmMeasureGroupValue (MEAN)Dispersion
ReSTORVisual AcuityDistance (4 meters) UCVA0.07 logMARStandard Deviation 0.12
ReSTORVisual AcuityNear (preferred distance) UCVA0.07 logMARStandard Deviation 0.11
ReSTORVisual AcuityDistance (4 meters) BSCVA0.02 logMARStandard Deviation 0.1
ReSTORVisual AcuityNear (preferred distance) BSCVA0.06 logMARStandard Deviation 0.11
Secondary

Contrast Sensitivity

Contrast sensitivity is the measurement of how faded an image may become before it is indistinguishable. Contrast sensitivity was measured in photopic, mesopic, and mesopic with glare conditions at the following spatial frequencies: 1.5, 3, 6, 12, and 18 cpd (cycles per degree). Contrast sensitivity is measured in log units. A higher value for the logarithmic units translates to better contrast sensitivity.

Time frame: 1 week to 10 months

Population: contrast sensitivity data was received for only 51 of 146 patients.

ArmMeasureGroupValue (MEAN)Dispersion
ReSTORContrast SensitivityMesopic with glare condition at 3 cpd1.28 log unitsStandard Deviation 0.58
ReSTORContrast SensitivityMesopic with glare condition at 6 cpd0.92 log unitsStandard Deviation 0.74
ReSTORContrast SensitivityMesopic with glare condition at 12 cpd0.27 log unitsStandard Deviation 0.57
ReSTORContrast SensitivityMesopic with glare condition at 18 cpd0.07 log unitsStandard Deviation 0.27
ReSTORContrast SensitivityPhotopic condition at 1.5 cpd1.61 log unitsStandard Deviation 0.31
ReSTORContrast SensitivityPhotopic condition at 3 cpd1.78 log unitsStandard Deviation 0.32
ReSTORContrast SensitivityPhotopic condition at 6 cpd1.72 log unitsStandard Deviation 0.44
ReSTORContrast SensitivityPhotopic condition at 12 cpd1.22 log unitsStandard Deviation 0.53
ReSTORContrast SensitivityPhotopic condition at 18 cpd0.70 log unitsStandard Deviation 0.57
ReSTORContrast SensitivityMesopic condition at 1.5 cpd1.69 log unitsStandard Deviation 0.3
ReSTORContrast SensitivityMesopic condition at 3 cpd1.69 log unitsStandard Deviation 0.32
ReSTORContrast SensitivityMesopic condition at 6 cpd1.43 log unitsStandard Deviation 0.57
ReSTORContrast SensitivityMesopic condition at 12 cpd0.66 log unitsStandard Deviation 0.67
ReSTORContrast SensitivityMesopic condition at 18 cpd0.25 log unitsStandard Deviation 0.45
ReSTORContrast SensitivityMesopic with glare condition at 1.5 cpd1.29 log unitsStandard Deviation 0.52

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