Evaluation of Binocular Visual Acuity and Refractive Stability in the Alcon Clareon Intraocular Lens

The objective is to evaluate refractive stability (spherical equivalent change ≤ 0.50D from 1-month to 3-months).

Study Overview

• Status: Completed
• Conditions: Cataract
• Intervention / Treatment: Device: Clareon

Detailed Description

This study is a single-arm, evaluator masked clinical evaluation study of refractive stability, after successful bilateral cataract surgery. Subjects will be assessed pre-operatively, operatively and at 1 month and 3 months post-operatively. Clinical evaluations will include measurement of bilateral visual acuity, manifest refraction, and defocus curve.

• Study Type: Observational
• Enrollment (Actual): 31

Contacts and Locations

Study Locations

• United States
  • Georgia
    • Gainesville, Georgia, United States, 30501
      • Gainesville Eye Associates

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 50 years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: N/A

• Sampling Method: Non-Probability Sample

Study Population

Subjects ≥50 years of age presenting for cataract surgery who are appropriate candidates for intraocular lens implantation.

Description

Inclusion Criteria:

Subjects are eligible for the study if they meet the following criteria:

Note: Ocular criteria must be met in both eyes.

• Presenting for uncomplicated bilateral cataract surgery and have an interest in an IOL option
• Gender: Males and Females.
• Age: 50 or older
• Willing and able to provide written informed consent for participation in the study
• Willing and able to comply with scheduled visits and other study procedures.
• Have good ocular health, with no pathology that compromises visual acuity (outside of residual refractive error and cataract)
• Potential postoperative visual acuity of (20/25 Snellen) or better in both eyes

Exclusion Criteria:

If any of the following exclusion criteria are applicable to the subject or either eye, the subject should not be enrolled in the study.

• Irregular astigmatism (e.g. keratoconus)
• Corneal pathology (e.g. scar, dystrophy, pterygium, severe dry eye)
• Previous radial keratotomy, corneal refractive surgery or other corneal surgery (e.g. corneal transplant, DSAEK, lamellar keratoplasty)
• Previous anterior or posterior chamber surgery (e.g., vitrectomy, laser iridotomy)
• Diabetic retinopathy
• Macular pathology (e.g. ARMD, ERM)
• History of retinal detachment
• Any patient based on Barrett toric calculator that will have ≥ 0.75D residual astigmatism if Clareon® non-toric IOL is implanted
• Subjects who have an acute or chronic disease or illness that would confound the results of this investigation (e.g., immunocompromised, connective tissue disease, clinically significant atopic disease, diabetes, and any other such disease or illness), that are known to affect postoperative visual acuity
• Participation in any investigational drug or device trial within the previous 30 days prior to the start date of this trial (or currently participating)

The principal investigator reserves the right to declare a patient ineligible or non-evaluable based on medical evidence that indicates they are unsuitable for the trial.

Pregnancy has a known effect on the stability of refractions and visual acuity. As such, subjects who become pregnant during the study will not be discontinued but their data may be excluded from analyses of effectiveness.

Study Plan

How is the study designed?

Number of groups / cohorts

1

Cohorts and Interventions

Group / Cohort	Intervention / Treatment
Bilateral implantation of the Clareon monofocal IOL; Clareon monofocal intraocular lens (IOL)	Device: Clareon; Clareon monofocal intraocular lens (IOL)

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Refractive Stability	Refractive stability (spherical equivalent change ≤ 0.50D from 1-month to 3-months)	3 months

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Binocular Distance-corrected Intermediate Visual Acuity	Binocular distance-corrected intermediate visual acuity in logMAR	3 months
Binocular Uncorrected Distance Visual Acuity	Binocular uncorrected distance visual acuity in logMAR	3 months
Binocular Uncorrected Intermediate Visual Acuity	Binocular uncorrected intermediate visual acuity in logMAR	3 months
Binocular Corrected Distance Visual Acuity	Binocular corrected distance visual acuity in logMAR	3 months
Binocular Defocus Curve	A binocular defocus curve is obtained by measuring visual acuity (logMAR) at different spherical powers (D).	3 months

Collaborators and Investigators

• Sponsor: Gainesville Eye Associates
• Collaborators: Sengi
• Investigators: Principal Investigator: Clayton Blehm, MD, Gainesville Eye Associates

Study record dates

Study Major Dates

• Study Start (Actual): July 2, 2021
• Primary Completion (Actual): July 28, 2022
• Study Completion (Actual): July 28, 2022

Study Registration Dates

• First Submitted: June 15, 2021
• First Submitted That Met QC Criteria: June 15, 2021
• First Posted (Actual): June 23, 2021

Study Record Updates

• Last Update Posted (Actual): August 7, 2024
• Last Update Submitted That Met QC Criteria: August 1, 2024
• Last Verified: August 1, 2024

More Information

Terms related to this study

• Keywords: Clareon; Monofocal IOL
• Additional Relevant MeSH Terms: Eye Diseases; Lens Diseases; Cataract
• Other Study ID Numbers: CB-20-001

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: Yes
• product manufactured in and exported from the U.S.: No