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Assessment of Low Energy Lens Fragmentation Cataract Extraction in Patients Undergoing Cataract Surgery

A Prospective Multicenter Study to Assess The Clinical Outcomes of Low Energy Lens Fragmentation Cataract Extraction in Patients Undergoing Cataract Surgery

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04747834
Enrollment
100
Registered
2021-02-10
Start date
2021-01-06
Completion date
2022-01-24
Last updated
2024-06-06

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

Conditions

Cataract

Brief summary

The purpose of this research study is to evaluate the clinical outcomes of the use of low-energy segment removal with a micro-interventional irrigation/aspiration port (MICOR-304) to evacuate the lens prior to intraocular lens insertion in subjects undergoing routine cataract surgery.

Detailed description

Up to 300 eyes at up to 5 investigational sites will be enrolled in one of the two cohorts of this clinical investigation - up to 50 eyes in Cohort 1 and up to 50 eyes in Cohort 2. Only one eye per subject will be enrolled into the study. This is multicenter, multi-cohort, prospective clinical study designed to provide longitudinal, observational, non-comparative clinical outcome data for mechanical non-phacoemulsification lens extraction using low-energy segment removal with a micro-interventional irrigation/aspiration port (MICOR-304) to evacuate the lens prior to intraocular lens insertion. Participants who meet the inclusion and exclusion will be asked to enroll in the study. The investigator or designee will explain the study purpose, procedures and responsibilities to the potential participant and provide sufficient opportunity to ask questions, while allowing adequate time for consideration of the information provided. Upon participant confirmation of interest, written informed consent will be obtained and the subject will be enrolled in the study. One copy of the informed consent document (ICD) will be retained with the subject's medical records and one copy will be provided to the subject. Study subjects will be stratified into two Cohorts. Cohort 1 is comprised of eyes with mild-to- moderate cataracts only (Grade 1 to 2). Cohort 2 is comprised of eyes with moderate to more dense cataracts only (Grade 2+ to 3+). Subjects will be seen at the screening visit, intraoperative visit, and at post-operative days 1, 7, and 30.

Interventions

DEVICEMICOR-304

The MICOR-304 offers a mechanical approach to lens fragmentation and aspiration which provides an alternative to phacoemulsification with no cavitation, no thermogenic energy in the eye, which can eliminate generation of heat inside the eye while maintaining the same minimally invasive surgical approach through a small clear-cornea 2.5 mm incision.

Sponsors

Carl Zeiss Meditec, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

Subjects will be stratified into two Cohorts. Cohort 1 is comprised of eyes with mild-to- moderate cataracts only (Grade 1 to 2). Cohort 2 is comprised of eyes with moderate to more dense cataracts only (Grade 2+ to 3+).

Eligibility

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

Inclusion criteria

1. Able to understand study requirements, willing to follow study instructions and willing to return for required study follow-up visits 2. Willing and able to understand and complete the informed consent document 3. Subjects with a cataract grade of 1 to 3+ and are scheduled to undergo cataract surgery 4. Subjects ≥ 18 years of age 5. Clear intraocular media, other than cataract

Exclusion criteria

1. Polar cataracts 2. Zonular instability 3. History of dry eye treatments/devices and or dry eye medications other than artificial tears. 4. Concurrent participation or participation in any clinical trial up to 30 days prior to preoperative visit 5. Subjects that are pregnant, lactating or planning to become pregnant during the course of the study

Design outcomes

Primary

MeasureTime frameDescription
Total Lens Removal TimeAssessed during the surgical procedure, measured in seconds.Total lens removal time is defined in two phases: * The beginning time starts when the surgeon enters the eye with the MICOR-304 to start the lens removal process and completing when the surgeon finishes the nucleus lens removal with the MICOR-304 before changing over to irrigation and aspiration. * The second phase of lens removal time is the irrigation and aspiration stage for cortex removal which starts when the irrigation and aspiration tip enters the eye and completion time is when the cortex is removed. The total lens removal time as defined above is recorded in minutes and seconds.
Amount of Irrigation Solution Fluid Volume Used During the Surgical ProcedureAssessed during the surgical procedure, approximately 8 - 10 minutes.Total irrigation solution volume will be recorded using the indicators on the bag which will have labels that have pre-defined markers to indicate milliliters (ml) of volume of irrigation solution used for the surgical procedure.

Secondary

MeasureTime frameDescription
BCDVA at 1 Week1- week postoperativeAssessment of best-corrected distance visual acuity (BCDVA) at the 1-week postoperative visit. BCDVA is assessed by the healthcare provider and is a measurement of how well someone can see at 6m with corrective lenses, such as glasses or contact lenses.
BCDVA at 1 Month1 month postoperativeAssessment of BCDVA at the 1 Month postoperative visit
Change in Corneal ThicknessMeasured at Baseline, 1 Day, 1 Week and 1 Month postoperative.Assessment in the mean change in corneal thickness from baseline exam through the end of the study. Corneal thickness is measured using pachymetry presented with unit of measure μm.
Corneal EdemaPre-operativeCorneal edema will be assessed as the following: 0=None, 1+=Mild, 2+=Moderate and 3+=Severe
Corneal Edema 1 Day Postoperative1 Day PostoperativeCorneal edema will be assessed as the following: 0=None, 1+=Mild, 2+=Moderate, 3+=Severe
Corneal Edema 1-Week Postoperative1-Week PostoperativeCorneal edema will be assessed as the following: 0=None, 1+=Mild, 2+=Moderate, 3+=Severe
Corneal Edema 1 Month Postoperative1 Month PostoperativeCorneal edema will be assessed as the following: 0=None, 1+=Mild, 2+=Moderate and 3+=Severe
Corneal CellsPre-operativeCorneal cells will be assessed as the following: 0=\>1 cell, 0.5+=1-5 cells, 1+=6-15 cells, 2+=16-25 cells, 3+=26-50 cells and 4+=\>50 cells.
Total Surgical Procedure TimeAssessed during the surgical procedure.Total Surgical Procedure Time time is defined as the beginning time when the surgeon makes the first incision in the eye and completion time is when the eye speculum is removed at the end of the procedure. Total surgical procedure time is recorded in minutes and seconds.
Posterior Capsule OpacificationPre-operativePosterior capsule opacification will be assessed as the following: none, minimal, mild, moderate and severe.
Posterior Capsule Opacificaiton1-Week PostoperativePosterior capsule opacification will be assessed as the following: none, minimal, mild, moderate and severe.
Corneal Staining ErosionPre-operativeCorneal staining erosion will be assessed as the following: 0=None, 1+=Mild, 2+=Moderate and 3=Severe
Other Slit-Lamp FindingsPreoperativeAssessment of other slit-lamp exam findings not listed on data collection form.
MaculaPre-operativeMacula is assessed as normal and abnormal with free text to specify if abnormal, assessed via dilated fundus examination.
Disc AppearancePre-operativeDisc appearance is assessed as normal and abnormal with free text to specify if abnormal, assessed via dilated fundus examination.
VesselsPre-operativeVessels are assessed as normal and abnormal with free text to specify if abnormal, assessed via dilated fundus examination.
PeripheryPre-operativePeriphery is assessed as normal and abnormal with free text to specify if abnormal, assessed via dilated fundus examination.
Anterior Chamber FlarePre-operativeAnterior chamber flare will be assessed as the following: 0-None, 1+=Faint, 2+=Moderate, (iris and lens details clear), 3+=Marked (iris and lens details hazy), 4+=Intense fibrin or plastic aqueous.
UCVA at 1-DayPostoperative 1 DayAssessment of subjects uncorrected visual acuity (UCVA) at day 1 postoperative. Visual acuity is assessed by the healthcare provider without the aid of glasses or spectacles.

Countries

United States

Participant flow

Recruitment details

Recruitment began in January of 2021 and was completed in January 2022. The study had remained opened since January 2022 and was going to continue recruitment eventually. It was decided by the study sponsor to not enroll any more subjects and close out the study in February of 2024. Three clinical sites participated in the study.

Participants by arm

ArmCount
Cohort 1
Subjects with mild to moderate cataracts (Grade 1 to 2) scheduled to undergo mechanical non-phacoemulsification lens extraction using low-energy segment removal with a micro-interventional irrigation/aspiration port (MICOR-304) to evacuate the lens prior to intraocular lens insertion. MICOR-304: The MICOR-304 offers a mechanical approach to lens fragmentation and aspiration which provides an alternative to phacoemulsification with no cavitation, no thermogenic energy in the eye, which can eliminate generation of heat inside the eye while maintaining the same minimally invasive surgical approach through a small clear-cornea 2.5 mm incision.
44
Cohort 2
Subjects with moderate to dense cataracts (Grade 2+ to 3+) scheduled to undergo mechanical non-phacoemulsification lens extraction using low-energy segment removal with a micro-interventional irrigation/aspiration port (MICOR-304) to evacuate the lens prior to intraocular lens insertion.. MICOR-304: The MICOR-304 offers a mechanical approach to lens fragmentation and aspiration which provides an alternative to phacoemulsification with no cavitation, no thermogenic energy in the eye, which can eliminate generation of heat inside the eye while maintaining the same minimally invasive surgical approach through a small clear-cornea 2.5 mm incision.
56
Total100

Baseline characteristics

CharacteristicCohort 1Cohort 2Total
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
24 Participants47 Participants71 Participants
Age, Categorical
Between 18 and 65 years
20 Participants9 Participants29 Participants
Age, Continuous66.3 years
STANDARD_DEVIATION 6.6
70.2 years
STANDARD_DEVIATION 6.2
68.5 years
STANDARD_DEVIATION 6.7
Ethnicity (NIH/OMB)
Hispanic or Latino
1 Participants0 Participants1 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
43 Participants54 Participants97 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants2 Participants2 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
7 Participants1 Participants8 Participants
Race (NIH/OMB)
More than one race
1 Participants0 Participants1 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants2 Participants2 Participants
Race (NIH/OMB)
White
36 Participants53 Participants89 Participants
Region of Enrollment
United States
44 participants56 participants100 participants
Sex: Female, Male
Female
26 Participants30 Participants56 Participants
Sex: Female, Male
Male
18 Participants26 Participants44 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 440 / 56
other
Total, other adverse events
10 / 4413 / 56
serious
Total, serious adverse events
0 / 441 / 56

Outcome results

Primary

Amount of Irrigation Solution Fluid Volume Used During the Surgical Procedure

Total irrigation solution volume will be recorded using the indicators on the bag which will have labels that have pre-defined markers to indicate milliliters (ml) of volume of irrigation solution used for the surgical procedure.

Time frame: Assessed during the surgical procedure, approximately 8 - 10 minutes.

ArmMeasureValue (MEAN)
Cohort 1Amount of Irrigation Solution Fluid Volume Used During the Surgical Procedure40.7 Milliliters
Cohort 2Amount of Irrigation Solution Fluid Volume Used During the Surgical Procedure35.3 Milliliters
Primary

Total Lens Removal Time

Total lens removal time is defined in two phases: * The beginning time starts when the surgeon enters the eye with the MICOR-304 to start the lens removal process and completing when the surgeon finishes the nucleus lens removal with the MICOR-304 before changing over to irrigation and aspiration. * The second phase of lens removal time is the irrigation and aspiration stage for cortex removal which starts when the irrigation and aspiration tip enters the eye and completion time is when the cortex is removed. The total lens removal time as defined above is recorded in minutes and seconds.

Time frame: Assessed during the surgical procedure, measured in seconds.

ArmMeasureValue (MEAN)
Cohort 1Total Lens Removal Time76.0 seconds
Cohort 2Total Lens Removal Time80.1 seconds
Secondary

Anterior Chamber Flare

Anterior chamber flare will be assessed as the following: 0-None, 1+=Faint, 2+=Moderate, (iris and lens details clear), 3+=Marked (iris and lens details hazy), 4+=Intense fibrin or plastic aqueous.

Time frame: 1-Month Postoperative

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Cohort 1Anterior Chamber FlarePostoperative 1 Month 0 Anterior Chamber Flare43 Participants
Cohort 1Anterior Chamber FlarePostoperative 1 Month >0 Anterior Chamber Flare0 Participants
Cohort 2Anterior Chamber FlarePostoperative 1 Month 0 Anterior Chamber Flare55 Participants
Cohort 2Anterior Chamber FlarePostoperative 1 Month >0 Anterior Chamber Flare0 Participants
Secondary

Anterior Chamber Flare

Anterior chamber flare will be assessed as the following: 0-None, 1+=Faint, 2+=Moderate, (iris and lens details clear), 3+=Marked (iris and lens details hazy), 4+=Intense fibrin or plastic aqueous.

Time frame: 1-Week Postoperative

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Cohort 1Anterior Chamber FlarePostoperative 1 Week 0 Anterior Chamber Flare44 Participants
Cohort 1Anterior Chamber FlarePostoperative 1 Week >0 Anterior Chamber Flare0 Participants
Cohort 2Anterior Chamber FlarePostoperative 1 Week 0 Anterior Chamber Flare56 Participants
Cohort 2Anterior Chamber FlarePostoperative 1 Week >0 Anterior Chamber Flare0 Participants
Secondary

Anterior Chamber Flare

Anterior chamber flare will be assessed as the following: 0-None, 1+=Faint, 2+=Moderate, (iris and lens details clear), 3+=Marked (iris and lens details hazy), 4+=Intense fibrin or plastic aqueous.

Time frame: 1-Day Postoperative

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Cohort 1Anterior Chamber FlarePostoperative 1 Day 0 Anterior Chamber Flare41 Participants
Cohort 1Anterior Chamber FlarePostoperative 1 Day Faint Anterior Chamber Flare3 Participants
Cohort 2Anterior Chamber FlarePostoperative 1 Day 0 Anterior Chamber Flare51 Participants
Cohort 2Anterior Chamber FlarePostoperative 1 Day Faint Anterior Chamber Flare5 Participants
Secondary

Anterior Chamber Flare

Anterior chamber flare will be assessed as the following: 0-None, 1+=Faint, 2+=Moderate, (iris and lens details clear), 3+=Marked (iris and lens details hazy), 4+=Intense fibrin or plastic aqueous.

Time frame: Pre-operative

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Cohort 1Anterior Chamber FlarePreoperative 0 Anterior Chamber Flare44 Participants
Cohort 1Anterior Chamber FlarePreoperative >0 Anterior Chamber Flare0 Participants
Cohort 2Anterior Chamber FlarePreoperative 0 Anterior Chamber Flare56 Participants
Cohort 2Anterior Chamber FlarePreoperative >0 Anterior Chamber Flare0 Participants
Secondary

BCDVA at 1 Month

Assessment of BCDVA at the 1 Month postoperative visit

Time frame: 1 month postoperative

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Cohort 1BCDVA at 1 MonthPostoperative 1-Month BCDVA 20/301 Participants
Cohort 1BCDVA at 1 MonthPostoperative 1-Month BCDVA 20/152 Participants
Cohort 1BCDVA at 1 MonthPostoperative 1-Month BCDVA 20/2031 Participants
Cohort 1BCDVA at 1 MonthPostoperative 1-Month BCDVA 20/258 Participants
Cohort 1BCDVA at 1 MonthPostoperative 1-Month BCDVA 20/401 Participants
Cohort 2BCDVA at 1 MonthPostoperative 1-Month BCDVA 20/401 Participants
Cohort 2BCDVA at 1 MonthPostoperative 1-Month BCDVA 20/2035 Participants
Cohort 2BCDVA at 1 MonthPostoperative 1-Month BCDVA 20/2510 Participants
Cohort 2BCDVA at 1 MonthPostoperative 1-Month BCDVA 20/153 Participants
Cohort 2BCDVA at 1 MonthPostoperative 1-Month BCDVA 20/306 Participants
Secondary

BCDVA at 1 Week

Assessment of best-corrected distance visual acuity (BCDVA) at the 1-week postoperative visit. BCDVA is assessed by the healthcare provider and is a measurement of how well someone can see at 6m with corrective lenses, such as glasses or contact lenses.

Time frame: 1- week postoperative

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Cohort 1BCDVA at 1 WeekPostoperative 1-Week BCDVA 20/302 Participants
Cohort 1BCDVA at 1 WeekPostoperative 1-Week BCDVA 20/151 Participants
Cohort 1BCDVA at 1 WeekPostoperative 1-Week BCDVA 20/500 Participants
Cohort 1BCDVA at 1 WeekPostoperative 1-Week BCDVA 20/2510 Participants
Cohort 1BCDVA at 1 WeekPostoperative 1-Week BCDVA 20/1500 Participants
Cohort 1BCDVA at 1 WeekPostoperative 1-Week BCDVA 20/2030 Participants
Cohort 2BCDVA at 1 WeekPostoperative 1-Week BCDVA 20/1501 Participants
Cohort 2BCDVA at 1 WeekPostoperative 1-Week BCDVA 20/2036 Participants
Cohort 2BCDVA at 1 WeekPostoperative 1-Week BCDVA 20/2511 Participants
Cohort 2BCDVA at 1 WeekPostoperative 1-Week BCDVA 20/306 Participants
Cohort 2BCDVA at 1 WeekPostoperative 1-Week BCDVA 20/501 Participants
Cohort 2BCDVA at 1 WeekPostoperative 1-Week BCDVA 20/150 Participants
Secondary

Change in Corneal Thickness

Assessment in the mean change in corneal thickness from baseline exam through the end of the study. Corneal thickness is measured using pachymetry presented with unit of measure μm.

Time frame: Measured at Baseline, 1 Day, 1 Week and 1 Month postoperative.

ArmMeasureGroupValue (MEAN)Dispersion
Cohort 1Change in Corneal ThicknessPreoperative Corneal Thickness542.9 μmStandard Deviation 30.8
Cohort 1Change in Corneal Thickness1 Day Corneal Thickness620.5 μmStandard Deviation 108.2
Cohort 1Change in Corneal Thickness1 Week Corneal Thickness559.4 μmStandard Deviation 43.6
Cohort 1Change in Corneal Thickness1 Month Corneal Thickness549.1 μmStandard Deviation 40.2
Cohort 2Change in Corneal Thickness1 Month Corneal Thickness543.1 μmStandard Deviation 32.1
Cohort 2Change in Corneal ThicknessPreoperative Corneal Thickness540.2 μmStandard Deviation 29.7
Cohort 2Change in Corneal Thickness1 Week Corneal Thickness563.0 μmStandard Deviation 43.5
Cohort 2Change in Corneal Thickness1 Day Corneal Thickness641.1 μmStandard Deviation 210.4
Secondary

Corneal Cells

Corneal cells will be assessed as the following: 0=\>1 cell, 0.5+=1-5 cells, 1+=6-15 cells, 2+=16-25 cells, 3+=26-50 cells and 4+=\>50 cells.

Time frame: Pre-operative

Population: Preoperative \>1 Corneal Cells

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Cohort 1Corneal Cells0 Corneal Cells44 Participants
Cohort 1Corneal Cells> 0 Corneal Cells0 Participants
Cohort 2Corneal Cells0 Corneal Cells56 Participants
Cohort 2Corneal Cells> 0 Corneal Cells0 Participants
Secondary

Corneal Cells

Corneal cells will be assessed as the following: 0=\>1 cell, 0.5+=1-5 cells, 1+=6-15 cells, 2+=16-25 cells, 3+=26-50 cells and 4+=\>50 cells

Time frame: 1-Week Postoperative

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Cohort 1Corneal CellsPostoperative 1-Week >1 Corneal Cell38 Participants
Cohort 1Corneal CellsPostoperative 1-Week 1-5 Corneal Cells3 Participants
Cohort 1Corneal CellsPostoperative 1-Week 6-15 Corneal Cells3 Participants
Cohort 2Corneal CellsPostoperative 1-Week >1 Corneal Cell47 Participants
Cohort 2Corneal CellsPostoperative 1-Week 1-5 Corneal Cells7 Participants
Cohort 2Corneal CellsPostoperative 1-Week 6-15 Corneal Cells2 Participants
Secondary

Corneal Cells

Corneal cells will be assessed as the following: 0=\>1 cell, 0.5+=1-5 cells, 1+=6-15 cells, 2+=16-25 cells, 3+=26-50 cells and 4+=\>50 cells

Time frame: 1-Month Postoperative

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Cohort 1Corneal CellsPostoperative 1-Month 0 Corneal Cells43 Participants
Cohort 1Corneal CellsPostoperative 1-Month >1 Corneal Cells0 Participants
Cohort 2Corneal CellsPostoperative 1-Month 0 Corneal Cells55 Participants
Cohort 2Corneal CellsPostoperative 1-Month >1 Corneal Cells0 Participants
Secondary

Corneal Cells

Corneal cells will be assessed as the following: 0=\>1 cell, 0.5+=1-5 cells, 1+=6-15 cells, 2+=16-25 cells, 3+=26-50 cells and 4+=\>50 cells

Time frame: 1 Day Postoperative

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Cohort 1Corneal CellsPostoperative 1 Day 6-15 Corneal Cells17 Participants
Cohort 1Corneal CellsPostoperative 1 Day 26-50 Corneal Cells1 Participants
Cohort 1Corneal CellsPostoperative 1 Day 16-25 Corneal Cells1 Participants
Cohort 1Corneal CellsPostoperative 1 Day >1 Corneal Cells10 Participants
Cohort 1Corneal CellsPostoperative 1 Day 1-5 Corneal Cells15 Participants
Cohort 2Corneal CellsPostoperative 1 Day >1 Corneal Cells15 Participants
Cohort 2Corneal CellsPostoperative 1 Day 1-5 Corneal Cells9 Participants
Cohort 2Corneal CellsPostoperative 1 Day 6-15 Corneal Cells28 Participants
Cohort 2Corneal CellsPostoperative 1 Day 16-25 Corneal Cells4 Participants
Cohort 2Corneal CellsPostoperative 1 Day 26-50 Corneal Cells0 Participants
Secondary

Corneal Edema

Corneal edema will be assessed as the following: 0=None, 1+=Mild, 2+=Moderate and 3+=Severe

Time frame: Pre-operative

Population: Preoperative Corneal Edema

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Cohort 1Corneal Edema0 Corneal Edema44 Participants
Cohort 1Corneal EdemaCorneal Edema >00 Participants
Cohort 2Corneal Edema0 Corneal Edema56 Participants
Cohort 2Corneal EdemaCorneal Edema >00 Participants
Secondary

Corneal Edema 1 Day Postoperative

Corneal edema will be assessed as the following: 0=None, 1+=Mild, 2+=Moderate, 3+=Severe

Time frame: 1 Day Postoperative

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Cohort 1Corneal Edema 1 Day PostoperativePostoperative 1-Day No Corneal Edema27 Participants
Cohort 1Corneal Edema 1 Day PostoperativePostoperative 1-Day Mild Corneal Edema8 Participants
Cohort 1Corneal Edema 1 Day PostoperativePostoperative 1-Day Moderate Corneal Edema8 Participants
Cohort 1Corneal Edema 1 Day PostoperativePostoperative 1-Day Severe Corneal Edema1 Participants
Cohort 2Corneal Edema 1 Day PostoperativePostoperative 1-Day Severe Corneal Edema3 Participants
Cohort 2Corneal Edema 1 Day PostoperativePostoperative 1-Day No Corneal Edema18 Participants
Cohort 2Corneal Edema 1 Day PostoperativePostoperative 1-Day Moderate Corneal Edema16 Participants
Cohort 2Corneal Edema 1 Day PostoperativePostoperative 1-Day Mild Corneal Edema19 Participants
Secondary

Corneal Edema 1 Month Postoperative

Corneal edema will be assessed as the following: 0=None, 1+=Mild, 2+=Moderate and 3+=Severe

Time frame: 1 Month Postoperative

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Cohort 1Corneal Edema 1 Month PostoperativeNo Corneal Edema43 Participants
Cohort 1Corneal Edema 1 Month Postoperative> 0 Corneal Edema0 Participants
Cohort 2Corneal Edema 1 Month PostoperativeNo Corneal Edema55 Participants
Cohort 2Corneal Edema 1 Month Postoperative> 0 Corneal Edema0 Participants
Secondary

Corneal Edema 1-Week Postoperative

Corneal edema will be assessed as the following: 0=None, 1+=Mild, 2+=Moderate, 3+=Severe

Time frame: 1-Week Postoperative

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Cohort 1Corneal Edema 1-Week PostoperativePostoperative 1-Week No Corneal Edema43 Participants
Cohort 1Corneal Edema 1-Week PostoperativePostoperative 1-Week Mild Corneal Edema1 Participants
Cohort 1Corneal Edema 1-Week PostoperativePostoperative 1-Week Severe Corneal Edema0 Participants
Cohort 2Corneal Edema 1-Week PostoperativePostoperative 1-Week No Corneal Edema53 Participants
Cohort 2Corneal Edema 1-Week PostoperativePostoperative 1-Week Mild Corneal Edema2 Participants
Cohort 2Corneal Edema 1-Week PostoperativePostoperative 1-Week Severe Corneal Edema1 Participants
Secondary

Corneal Staining Erosion

Corneal staining erosion will be assessed as the following: 0=None, 1+=Mild, 2+=Moderate and 3=Severe

Time frame: 1-Day Postoperative

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Cohort 1Corneal Staining ErosionPostoperative 1 Day 0 Cornea Staining Erosion43 Participants
Cohort 1Corneal Staining ErosionPostoperative 1 Day Mild Cornea Staining Erosion1 Participants
Cohort 2Corneal Staining ErosionPostoperative 1 Day 0 Cornea Staining Erosion54 Participants
Cohort 2Corneal Staining ErosionPostoperative 1 Day Mild Cornea Staining Erosion2 Participants
Secondary

Corneal Staining Erosion

Corneal staining erosion will be assessed as the following: 0=None, 1+=Mild, 2+=Moderate and 3=Severe

Time frame: 1-Week Postoperative

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Cohort 1Corneal Staining ErosionPostoperative 1 Week 0 Cornea Staining Erosion44 Participants
Cohort 1Corneal Staining ErosionPostoperative 1 Week >0 Cornea Staining0 Participants
Cohort 2Corneal Staining ErosionPostoperative 1 Week 0 Cornea Staining Erosion56 Participants
Cohort 2Corneal Staining ErosionPostoperative 1 Week >0 Cornea Staining0 Participants
Secondary

Corneal Staining Erosion

Corneal staining erosion will be assessed as the following: 0=None, 1+=Mild, 2+=Moderate and 3=Severe

Time frame: 1-Month Postoperative

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Cohort 1Corneal Staining ErosionPostoperative 1 Month 0 Cornea Staining43 Participants
Cohort 1Corneal Staining ErosionPostoperative 1 Month >0 Cornea Staining0 Participants
Cohort 2Corneal Staining ErosionPostoperative 1 Month 0 Cornea Staining55 Participants
Cohort 2Corneal Staining ErosionPostoperative 1 Month >0 Cornea Staining0 Participants
Secondary

Corneal Staining Erosion

Corneal staining erosion will be assessed as the following: 0=None, 1+=Mild, 2+=Moderate and 3=Severe

Time frame: Pre-operative

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Cohort 1Corneal Staining ErosionPreoperative 0 Cornea Staining Erosion44 Participants
Cohort 1Corneal Staining ErosionPreoperative >0 Cornea Staining Erosion0 Participants
Cohort 2Corneal Staining ErosionPreoperative 0 Cornea Staining Erosion56 Participants
Cohort 2Corneal Staining ErosionPreoperative >0 Cornea Staining Erosion0 Participants
Secondary

Disc Appearance

Disc appearance is assessed as normal and abnormal with free text to specify if abnormal, assessed via dilated fundus examination.

Time frame: Pre-operative

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Cohort 1Disc AppearancePreoperative Disc Assessment Normal38 Participants
Cohort 1Disc AppearancePreoperative Disc Assessment Abnormal6 Participants
Cohort 2Disc AppearancePreoperative Disc Assessment Normal48 Participants
Cohort 2Disc AppearancePreoperative Disc Assessment Abnormal8 Participants
Secondary

Disc Appearance

Disc appearance is assessed as normal and abnormal with free text to specify if abnormal, assessed via dilated fundus examination.

Time frame: 1-Month Postoperative

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Cohort 1Disc AppearancePostoperative 1-Month Disc Assessment Normal33 Participants
Cohort 1Disc AppearancePostoperative 1-Month Disc Assessment Abnormal10 Participants
Cohort 2Disc AppearancePostoperative 1-Month Disc Assessment Normal53 Participants
Cohort 2Disc AppearancePostoperative 1-Month Disc Assessment Abnormal2 Participants
Secondary

Macula

Macula is assessed as normal and abnormal with free text to specify if abnormal, assessed via dilated fundus examination.

Time frame: Pre-operative

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Cohort 1MaculaPreoperative Macula Assessment Normal38 Participants
Cohort 1MaculaPreoperative Macula Assessment Abnormal6 Participants
Cohort 2MaculaPreoperative Macula Assessment Normal48 Participants
Cohort 2MaculaPreoperative Macula Assessment Abnormal8 Participants
Secondary

Macula

Macula is assessed as normal and abnormal with free text to specify if abnormal, assessed via dilated fundus examination.

Time frame: 1-Month Postoperative

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Cohort 1MaculaPostoperative 1-Month Macula Assessment Normal36 Participants
Cohort 1MaculaPostoperative 1-Month Macula Assessment Abormal7 Participants
Cohort 2MaculaPostoperative 1-Month Macula Assessment Normal51 Participants
Cohort 2MaculaPostoperative 1-Month Macula Assessment Abormal4 Participants
Secondary

Other Slit-Lamp Findings

Assessment of other slit-lamp exam findings not listed on data collection form.

Time frame: 1-Month Postoperative

Population: Other slit-lamp findings mild/moderate cohort: Vitreous Prolapse and Suture OS, RK incisions, anterior basement membrane dystrophy, LASIK flap, corneal scar, Other slit-lamp findings severe cohort: Endothelial Crocodile Shagreen, Arcus OU, SPK, Pterygium, guttata, microcystic edema.

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Cohort 1Other Slit-Lamp FindingsPostoperative 1-Month Other Slit-Lamp Findings6 Participants
Cohort 1Other Slit-Lamp FindingsPostoperative 1-Month No Other Slit-Lamp Findings37 Participants
Cohort 2Other Slit-Lamp FindingsPostoperative 1-Month No Other Slit-Lamp Findings50 Participants
Cohort 2Other Slit-Lamp FindingsPostoperative 1-Month Other Slit-Lamp Findings5 Participants
Secondary

Other Slit-Lamp Findings

Assessment of other slit-lamp exam findings not listed on data collection form.

Time frame: Preoperative

Population: Other slit-lamp findings mild/moderate cohort: Chalazion Right lower eyelid, Prosthesis OS, Few RK incision OU, Anterior basement membrane dystrophy, Lasik flap. Other slit-lamp findings severe cohort: Dermatochalasis, Pterygium temporal and nasal 1/2mm

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Cohort 1Other Slit-Lamp FindingsPreoperative Other Slit-Lamp Findings5 Participants
Cohort 1Other Slit-Lamp FindingsPreoperative No Other Slit-Lamp Findings39 Participants
Cohort 2Other Slit-Lamp FindingsPreoperative Other Slit-Lamp Findings2 Participants
Cohort 2Other Slit-Lamp FindingsPreoperative No Other Slit-Lamp Findings54 Participants
Secondary

Other Slit-Lamp Findings

Assessment of other slit-lamp exam findings not listed on data collection form.

Time frame: 1-Day Postoperative

Population: Other slit-lamp findings mild/moderate cohort: RK incisions, anterior basement membrane dystrophy, LASIK flap, Other slit-lamp findings severe cohort: Pterygium

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Cohort 1Other Slit-Lamp FindingsPostoperative 1-Day other slit-lamp findings3 Participants
Cohort 1Other Slit-Lamp FindingsPostoperative 1-Day no other slit-lamp findings41 Participants
Cohort 2Other Slit-Lamp FindingsPostoperative 1-Day other slit-lamp findings1 Participants
Cohort 2Other Slit-Lamp FindingsPostoperative 1-Day no other slit-lamp findings55 Participants
Secondary

Other Slit-Lamp Findings

Assessment of other slit-lamp exam findings not listed on data collection form.

Time frame: 1-Week Postoperative

Population: Other slit-lamp findings mild/moderate cohort: RK incisions, anterior basement membrane dystrophy, LASIK flap, Other slit-lamp findings severe cohort: Pterygium, guttata, microcystic edema.

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Cohort 1Other Slit-Lamp FindingsPostoperative 1-Week Other Slit-Lamp Findings3 Participants
Cohort 1Other Slit-Lamp FindingsPostoperative 1-Week No Other Slit-Lamp Findings41 Participants
Cohort 2Other Slit-Lamp FindingsPostoperative 1-Week Other Slit-Lamp Findings3 Participants
Cohort 2Other Slit-Lamp FindingsPostoperative 1-Week No Other Slit-Lamp Findings53 Participants
Secondary

Periphery

Periphery is assessed as normal and abnormal with free text to specify if abnormal, assessed via dilated fundus examination.

Time frame: Pre-operative

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Cohort 1PeripheryPreoperative Periphery Assessment Normal43 Participants
Cohort 1PeripheryPreoperative Periphery Assessment Abnormal1 Participants
Cohort 2PeripheryPreoperative Periphery Assessment Normal49 Participants
Cohort 2PeripheryPreoperative Periphery Assessment Abnormal7 Participants
Secondary

Periphery

Periphery is assessed as normal and abnormal with free text to specify if abnormal, assessed via dilated fundus examination.

Time frame: 1-Month Postoperative

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Cohort 1PeripheryPostoperative 1-Month Periphery Assessment Normal42 Participants
Cohort 1PeripheryPostoperative 1-Month Periphery Assessment Abnormal1 Participants
Cohort 2PeripheryPostoperative 1-Month Periphery Assessment Normal48 Participants
Cohort 2PeripheryPostoperative 1-Month Periphery Assessment Abnormal7 Participants
Secondary

Posterior Capsule Opacificaiton

Posterior capsule opacification will be assessed as the following: none, minimal, mild, moderate and severe.

Time frame: 1-Week Postoperative

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Cohort 1Posterior Capsule OpacificaitonPostoperative 1 Week 0 Posterior Capsule Opacification43 Participants
Cohort 1Posterior Capsule OpacificaitonPostoperative 1 Week Minimal Posterior Capsule Opacification1 Participants
Cohort 2Posterior Capsule OpacificaitonPostoperative 1 Week 0 Posterior Capsule Opacification56 Participants
Cohort 2Posterior Capsule OpacificaitonPostoperative 1 Week Minimal Posterior Capsule Opacification0 Participants
Secondary

Posterior Capsule Opacification

Posterior capsule opacification will be assessed as the following: none, minimal, mild, moderate and severe.

Time frame: 1-Day Postoperative

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Cohort 1Posterior Capsule OpacificationPostoperative 1 Day 0 Posterior Capsule Opacification44 Participants
Cohort 1Posterior Capsule OpacificationPostoperative 1 Day >0 Posterior Capsule Opacification0 Participants
Cohort 2Posterior Capsule OpacificationPostoperative 1 Day 0 Posterior Capsule Opacification56 Participants
Cohort 2Posterior Capsule OpacificationPostoperative 1 Day >0 Posterior Capsule Opacification0 Participants
Secondary

Posterior Capsule Opacification

Posterior capsule opacification will be assessed as the following: none, minimal, mild, moderate and severe.

Time frame: 1-Month Postoperative

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Cohort 1Posterior Capsule OpacificationPostoperative 1 Month 0 Posterior Capsule Opacification39 Participants
Cohort 1Posterior Capsule OpacificationPostoperative 1 Month Minimal Posterior Capsule Opacification3 Participants
Cohort 1Posterior Capsule OpacificationPostoperative 1 Month Mild Posterior Capsule Opacification1 Participants
Cohort 1Posterior Capsule OpacificationPostoperative 1 Month Moderate Posterior Capsule Opacification0 Participants
Cohort 2Posterior Capsule OpacificationPostoperative 1 Month Moderate Posterior Capsule Opacification1 Participants
Cohort 2Posterior Capsule OpacificationPostoperative 1 Month 0 Posterior Capsule Opacification47 Participants
Cohort 2Posterior Capsule OpacificationPostoperative 1 Month Mild Posterior Capsule Opacification1 Participants
Cohort 2Posterior Capsule OpacificationPostoperative 1 Month Minimal Posterior Capsule Opacification6 Participants
Secondary

Posterior Capsule Opacification

Posterior capsule opacification will be assessed as the following: none, minimal, mild, moderate and severe.

Time frame: Pre-operative

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Cohort 1Posterior Capsule OpacificationPreoperative 0 Posterior Capsule Opacification44 Participants
Cohort 1Posterior Capsule OpacificationPreoperative >0 Posterior Capsule Opacification0 Participants
Cohort 2Posterior Capsule OpacificationPreoperative 0 Posterior Capsule Opacification56 Participants
Cohort 2Posterior Capsule OpacificationPreoperative >0 Posterior Capsule Opacification0 Participants
Secondary

Total Surgical Procedure Time

Total Surgical Procedure Time time is defined as the beginning time when the surgeon makes the first incision in the eye and completion time is when the eye speculum is removed at the end of the procedure. Total surgical procedure time is recorded in minutes and seconds.

Time frame: Assessed during the surgical procedure.

ArmMeasureValue (MEAN)Dispersion
Cohort 1Total Surgical Procedure Time486.3 secondsStandard Deviation 151.7
Cohort 2Total Surgical Procedure Time440.0 secondsStandard Deviation 143.1
Secondary

UCVA at 1-Day

Assessment of subjects uncorrected visual acuity (UCVA) at day 1 postoperative. Visual acuity is assessed by the healthcare provider without the aid of glasses or spectacles.

Time frame: Postoperative 1 Day

Population: Some outcome measures are based on participants while other outcome measures are based on means on a unit scale

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Cohort 1UCVA at 1-DayUCVA 20/50 @ 1-Day3 Participants
Cohort 1UCVA at 1-DayUCVA 20/20 @ 1-Day14 Participants
Cohort 1UCVA at 1-DayUCVA 20/60 @ 1-Day0 Participants
Cohort 1UCVA at 1-DayUCVA 20/320 @ 1-Day0 Participants
Cohort 1UCVA at 1-DayUCVA 20/70 @ 1-Day0 Participants
Cohort 1UCVA at 1-DayUCVA 20/25 @ 1-Day13 Participants
Cohort 1UCVA at 1-DayUCVA 20/80 @ 1-Day1 Participants
Cohort 1UCVA at 1-DayUCVA 20/100 @ 1-Day0 Participants
Cohort 1UCVA at 1-DayUCVA 20/30 @ 1-Day7 Participants
Cohort 1UCVA at 1-DayUCVA 20/150 @ 1-Day2 Participants
Cohort 1UCVA at 1-DayUCVA 20/40 @ 1-Day4 Participants
Cohort 1UCVA at 1-DayUCVA 20/200 @ 1-Day0 Participants
Cohort 1UCVA at 1-DayFinger Count @ 1-Day0 Participants
Cohort 2UCVA at 1-DayFinger Count @ 1-Day1 Participants
Cohort 2UCVA at 1-DayUCVA 20/80 @ 1-Day0 Participants
Cohort 2UCVA at 1-DayUCVA 20/200 @ 1-Day3 Participants
Cohort 2UCVA at 1-DayUCVA 20/320 @ 1-Day1 Participants
Cohort 2UCVA at 1-DayUCVA 20/20 @ 1-Day15 Participants
Cohort 2UCVA at 1-DayUCVA 20/30 @ 1-Day8 Participants
Cohort 2UCVA at 1-DayUCVA 20/40 @ 1-Day8 Participants
Cohort 2UCVA at 1-DayUCVA 20/50 @ 1-Day2 Participants
Cohort 2UCVA at 1-DayUCVA 20/60 @ 1-Day2 Participants
Cohort 2UCVA at 1-DayUCVA 20/70 @ 1-Day5 Participants
Cohort 2UCVA at 1-DayUCVA 20/100 @ 1-Day1 Participants
Cohort 2UCVA at 1-DayUCVA 20/150 @ 1-Day0 Participants
Cohort 2UCVA at 1-DayUCVA 20/25 @ 1-Day10 Participants
Secondary

Vessels

Vessels are assessed as normal and abnormal with free text to specify if abnormal, assessed via dilated fundus examination.

Time frame: Pre-operative

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Cohort 1VesselsPreoperative Vessel Assessment Normal43 Participants
Cohort 1VesselsPreoperative Vessel Assessment Abnormal1 Participants
Cohort 2VesselsPreoperative Vessel Assessment Normal54 Participants
Cohort 2VesselsPreoperative Vessel Assessment Abnormal2 Participants
Secondary

Vessels

Vessels are assessed as normal and abnormal with free text to specify if abnormal, assessed via dilated fundus examination.

Time frame: 1-Month Postoperative

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Cohort 1VesselsPostoperative 1-Month Vessel Assessment Normal43 Participants
Cohort 1VesselsPostoperative 1-Month Vessel Assessment Abnormal0 Participants
Cohort 2VesselsPostoperative 1-Month Vessel Assessment Normal54 Participants
Cohort 2VesselsPostoperative 1-Month Vessel Assessment Abnormal1 Participants

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