Comparing Visual Acuity Measurements (How Well You Can See) Using a Standard ETDRS Chart & a Handheld ETDRS Chart

Julia Haller70 enrolled

Overview

Comparing visual acuity measurements (measurements of how well you can see) using a standard ETDRS (Early Treatment Diabetic Retinopathy Study) chart and a handheld ETDRS chart

Prospective determination of agreement between standard ETDRS chart and handheld illuminated ETDRS equivalent chart in eyes with retinal pathology

Study Type

OBSERVATIONAL

Enrollment

Conditions

Diabetic Retinopathy

Eligibility

Sex: ALLMin age: 18 Years

Medical Language ↔ Plain English

Inclusion Criteria: 1. Ability to provide written informed consent and comply with study assessments for the full duration of the study (one visit per patient). 2. Age greater than 18 years. 3. Clinical diagnosis of retinal disease (including age-related macular degeneration, macular degeneration, retinal vessel occlusion, among others). Exclusion Criteria: 1. Presence of a significant cataract as determined by your doctor. 2. Presence of a significant posterior capsular opacity (haziness in your eyes) as determined by your doctor. 3. Diagnosis of uveitis (inflammation in part of the eye).

Locations (1)

Mid Atlantic Retina- Wills Eye Institute

Philadelphia, Pennsylvania, United States

Outcomes

Primary Outcomes

ETDRS Letter Score

To determine the visual acuity measurement using this handheld internally illuminated ETDRS chart, and a standard back illuminated EDTRS chart. This will be done during the visual acuity test.

Time frame: 1 Day

Secondary Outcomes

ETDRS Letter Score Consistency

To use the score results to determine whether this new, handheld chart, called the RAM-ETDRS chart, is just as efficient as the standard ETDRS eye chart in measuring your vision. This will be done during your visual acuity exam.

Time frame: 1 Day

Data from ClinicalTrials.gov

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