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Testing young infants with the Welch Allyn SureSight non‐cycloplegic autorefractor
Author(s) -
Adams Russell J.,
Dalton Susan M.,
Murphy Angela M.,
Hall Heather L.,
Courage Mary L.
Publication year - 2002
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.1475-1313.2002.00073.x
Subject(s) - autorefractor , retinoscopy , refractive error , repeatability , medicine , optometry , limits of agreement , pediatrics , ophthalmology , eye disease , mathematics , statistics , nuclear medicine
Both eyes of 74 healthy 2–12‐month‐old human infants were refracted twice with the new Welch Allyn SureSight non‐cycloplegic autorefractor. At least one reliable estimate of sphere and cylinder was obtained from both eyes of all babies attempted, and 88% of infants contributed two estimates from each eye. These measurements were collected in less than 2 min. Although spherical estimates changed little over the first year (mean = +1.78 D), cylindrical error appeared to decrease from a mean of about 1.4 D (at 6 months) to 0.9 D (at 12 months). Refractive estimates and variability agreed well with published infant data obtained with traditional cycloplegic retinoscopy. Repeatability was excellent for measurement of cylinder but for sphere, 17% of infants' estimates differed by at least 1.0 D between tests. However, given its simplicity and time‐efficiency, the SureSight should be a good candidate for the relatively easy screening of significant refractive error in non‐verbal paediatric patients.