Visual acuity testing using autorefraction or pinhole occluder compared with a manual protocol refraction in individuals with diabetes.

ABSTRACT:

Purpose

To compare visual acuity (VA) scores obtained after autorefraction or using a pinhole occluder to scores obtained after refraction according to a standard clinical research protocol.

Design

Prospective, comparative case series.

Participants

One hundred ten study participants (209 eyes) with diabetes mellitus and a broad range of diabetic retinopathy severity and VA.

Methods

We measured VA after autorefraction by a Topcon KR-8000 autorefractor as well as after a Diabetic Retinopathy Clinical Research Network (DRCR.net) protocol manual refraction. The order of testing was randomized and examiners were masked to the source of each refraction. A second VA measurement, utilizing an identical DRCR.net manual refraction, was made in a subset of eyes (n = 144;

SUBMITTER: Sun JK 

PROVIDER: S-EPMC3057328 | biostudies-literature | 2011 Mar

REPOSITORIES: biostudies-literature