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Clinical Evaluation of Low Contrast Visual Performance and Low Light Phenomena in Patients With Various Intraocular Lens Implants
NCT07213167 · View on ClinicalTrials.gov ↗
Study Summary
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
Conditions Studied
Interventions
- OTHER None-placebo
Study Locations (1)
California
- Empire Eye and Laser Center — Bakersfield
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 120 participants |
| Start Date | 2025-09-24 |
| Est. Completion | 2026-03 |
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Full Details on ClinicalTrials.gov ↗What the Registry Record Tells You About NCT07213167
The ClinicalTrials.gov registry entry for NCT07213167 describes a study currently listed as recruiting. It is categorized as an unspecified phase, which is the standard way researchers label where a study sits along the investigational pathway from early safety work through later efficacy and post-marketing evaluation. The registered enrollment target is 120 participants, a figure that helps gauge the scale of data the investigators plan to collect. The listed sponsor is Dr. Daniel H. Chang, MD, which has 1 total studies on file at ClinicalTrials.gov, and sponsors are the parties responsible for study design, oversight, and regulatory filings.
The record links to 5 conditions, with Visual Acuity appearing as the primary indexed condition, and to 1 intervention — of which None-placebo is the first listed. Interventions can include drugs, devices, procedures, behavioral programs, or observational arms, and each is tracked as a separate registry field so that downstream queries can filter accurately. When a trial lists multiple interventions, it usually reflects a multi-arm design or a comparison protocol rather than a single treatment being tested in isolation. The brief summary published in the registry is the clearest source of protocol intent and should be read before drawing conclusions from any sidebar tags.
Geographic footprint matters for practical reasons: NCT07213167 reports 1 study location spanning 1 distinct geographic area — top geographies include California. A larger site network tends to correlate with broader recruitment capacity, but it does not imply anything about study quality, and site-level enrollment status can diverge from the overall registry status shown above. Every data point on this page comes from the public ClinicalTrials.gov dataset and is reproduced here for reference only; it is not a medical recommendation, an endorsement of the sponsor, or an invitation to enroll. Verify current status, eligibility criteria, and contact details directly at ClinicalTrials.gov, and discuss any participation decision with your own healthcare provider.
Frequently Asked Questions
What is clinical trial NCT07213167 about?
NCT07213167 is a clinical study titled "Clinical Evaluation of Low Contrast Visual Performance and Low Light Phenomena in Patients With Various Intraocular Lens Implants". 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 th...
What is the current status of trial NCT07213167?
This trial is currently recruiting. The enrollment target is 120 participants. The study started on 2025-09-24. Estimated completion is 2026-03.
What conditions does trial NCT07213167 study?
This clinical trial studies the following conditions: Visual Acuity, Visual Function, Posterior Capsule Opacification, Dysphotopsia, Contrast Sensitivity. These conditions were identified from the trial registry and reflect the primary focus areas of the research.
What interventions are being tested in trial NCT07213167?
The interventions under investigation include: None-placebo (OTHER). Each intervention is being evaluated for safety and efficacy as part of this clinical study.
Who is sponsoring clinical trial NCT07213167?
This trial is sponsored by Dr. Daniel H. Chang, MD, which has 1 total clinical trials registered on ClinicalTrials.gov. The sponsor is responsible for the study's design, funding, and regulatory compliance.
Where is trial NCT07213167 being conducted?
This trial has 1 study location across California. Contact the study sites directly through ClinicalTrials.gov for enrollment availability.
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