Test-retest Repeatability of the Ohio Contrast Cards.

ABSTRACT:

Significance

The Ohio Contrast Cards are a repeatable test of contrast sensitivity, and they reveal higher contrast sensitivity for low-vision patients than is shown by the Pelli-Robson chart.

Purpose

This study aimed to compare the contrast sensitivity results and test/retest ±limits of agreement for the Ohio Contrast Cards and the Pelli-Robson letter contrast sensitivity chart on two challenging groups of participants, and to compare the Ohio Contrast Card results with grating acuity and the Pelli-Robson results with letter acuity.

Methods

The Ohio Contrast Card and Pelli-Robson tests were each performed twice by two different examiners within one visit on 40 elder patients in Primary Vision Care (>65 years old) and 23 to 27 low-vision school-aged students. Grating

SUBMITTER: Osman M 

PROVIDER: S-EPMC8833034 | biostudies-literature | 2021 Sep

REPOSITORIES: biostudies-literature