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Clinical evaluation of the Shin‐Nippon SRW‐5000 autorefractor in children
Author(s) -
Chat Sandy W. S.,
Edwards Marion H.
Publication year - 2001
Publication title -
ophthalmic and physiological optics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.147
H-Index - 66
eISSN - 1475-1313
pISSN - 0275-5408
DOI - 10.1046/j.1475-1313.2001.00584.x
Subject(s) - autorefractor , medicine , optometry , pediatrics , ophthalmology , eye disease , refractive error
Summary The Canon Autoref R‐1 is an ‘open‐field’ autorefractor which has been widely used for research purposes for the past 20 years, but is no longer manufactured. A new autorefractor, the Shin‐Nippon SRW‐5000, is now available, and if measures using this instrument are shown to be equally accurate and reliable, is likely to replace the R‐1. Here we report on the accuracy and reliability (repeatability and reproducibility) of refraction measures in a paediatric population (from 4 to 8 years of age). Subject numbers were 44 for cycloplegic measures and 53 for non‐cycloplegic measures. As would be expected, agreement with cycloplegic refraction and reliability were better when SRW‐5000 measures were taken using cycloplegia. Repeatability results from the SRW‐5000 autorefractor, both with and without cycloplegia were similar to those reported for the Canon R‐1.