Clinical Evaluation of Low Contrast Visual Performance and Low Light Phenomena in Patients With Various Intraocular Lens Implants

Part of paid clinical trials in Bakersfield, California.

Sponsor
Dr. Daniel H. Chang, MD
Study ID
NCT07213167
Status
Recruiting
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Conditions

  • Contrast Sensitivity
  • Dysphotopsia
  • Posterior Capsule Opacification
  • Visual Acuity
  • Visual Function

Eligibility Criteria

Sex
ALL
Age
22 Years - N/A
Healthy Volunteers
Not accepted

Interventions

  • None-placebo — OTHER
    No interventions.

Study Details

The goal of this clinical investigation is to evaluate visual acuity and contrast sensitivity in low lighting conditions using several different testing devices, and measure nighttime side effects of intraocular lens (IOL) implants after cataract surgery. Researchers will compare the results for three different types of IOLs to see how each lens contributes to overall visual function, patient experience and satisfaction. Participants will: * Complete two different questionnaires about their current vision * Undergo visual testing using several different devices

Key Dates

Start date
Sep 24, 2025
Status verified
Oct 2025
Primary completion
Jul 31, 2026
Completion
Aug 31, 2026

Study Design

Enrollment
120 participants (estimated)

Arms

  • Arm: Tecnis Monofocals
    Pseudophakic subjects with Tecnis Monofocals, Models ZCB00, ZCUxxx, DIB00, GIB00, and DIUxxx intraocular lenses.
  • Arm: Tecnis Symfony Optiblue
    Pseudophakic subjects with Tecnis Symfony Optiblue, model ZXR00V, ZXWxxx intraocular lenses.
  • Arm: Tecnis Odyssey
    Pseudophakic subjects with Tecnis Odyssey, model DRN00V, DRTxxx intraocular lenses.

Primary Outcome Measure

Low (50%) contrast defocus curve [ Time Frame: Day 1 ]

Central Contacts

Locations (1)

FacilityCityStateZIPSite coordinators
Empire Eye and Laser CenterBakersfieldCalifornia93309
Brittany M Camirand
[email protected]
661-301-6211
Research Department
661-325-3937
Daniel H Chang, MD (PRINCIPAL_INVESTIGATOR)
Andrew A Kao, MD (SUB_INVESTIGATOR)
Laura K Huggins, OD (SUB_INVESTIGATOR)
Jacqueline N Albert, OD (SUB_INVESTIGATOR)

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By research site
Empire Eye and Laser Center· Bakersfield, CA

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