Effect of six different autorefractor designs on the precision and accuracy of refractive error measurement.

ABSTRACT:

Purpose

To evaluate the precision of objective refraction measurements with six different autorefractors that have different designs and measurement principles and to compare the objective refraction values with the subjective refraction.

Method

Objective refraction of 55 participants was measured using six autorefractors with different designs. The instrument features mainly varied in terms of measurement principles, inbuilt fogging, open or closed view, and handheld or stationary designs. Two repeated measurements of objective refraction were performed with each autorefractor. The objective refractions from the six autorefractors were compared with the standard subjective refraction. The repeatability limit and Bland-Altman were used to describe the precision and accuracy

SUBMITTER: Venkataraman AP 

PROVIDER: S-EPMC9704684 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature