Evaluation of visual acuity measurements after autorefraction vs manual refraction in eyes with and without diabetic macular edema.

ABSTRACT:

Objective

To compare visual acuity (VA) scores after autorefraction vs manual refraction in eyes of patients with diabetes mellitus and a wide range of VAs.

Methods

The letter score from the Electronic Visual Acuity (EVA) test from the electronic Early Treatment Diabetic Retinopathy Study was measured after autorefraction (AR-EVA score) and after manual refraction (MR-EVA score), which is the research protocol of the Diabetic Retinopathy Clinical Research Network. Testing order was randomized, study participants and VA examiners were masked to refraction source, and a second EVA test using an identical supplemental manual refraction (MR-EVAsuppl score) was performed to determine test-retest variability.

Results

In 878 eyes of 456 study participants, the median MR-EVA

SUBMITTER: Sun JK 

PROVIDER: S-EPMC3489033 | biostudies-literature | 2012 Apr

REPOSITORIES: biostudies-literature