Testing young infants with the Welch Allyn suresight non-cycloplegic autorefractor

Ophthalmic Physiol Opt. 2002 Nov;22(6):546-51. doi: 10.1046/j.1475-1313.2002.00073.x.


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.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Age Factors
  • Astigmatism / diagnosis
  • Humans
  • Infant
  • Mass Screening
  • Ophthalmoscopy
  • Refraction, Ocular / physiology*
  • Reproducibility of Results
  • Retina / physiology
  • Vision Tests / instrumentation*
  • Vision Tests / methods
  • Vision Tests / standards