May 2008
Volume 49, Issue 13
Free
ARVO Annual Meeting Abstract  |   May 2008
Success Rate and Confidence Ratings of the Suresight Autorefractor for Testing Infants and Young Children
Author Affiliations & Notes
  • C. E. Donaldson
    University of Arizona, Tucson, Arizona
    Ophthalmology and Vision Science,
  • V. Dobson
    University of Arizona, Tucson, Arizona
    Ophthalmology and Vision Science,
    Psychology,
  • T. K. Green
    University of Arizona, Tucson, Arizona
    Ophthalmology and Vision Science,
  • E. M. Harvey
    University of Arizona, Tucson, Arizona
    Ophthalmology and Vision Science,
    Public Health,
  • Footnotes
    Commercial Relationships  C.E. Donaldson, None; V. Dobson, None; T.K. Green, None; E.M. Harvey, None.
  • Footnotes
    Support  NIH Grant EY13153 (EMH) and Research to Prevent Blindness
Investigative Ophthalmology & Visual Science May 2008, Vol.49, 1428. doi:https://doi.org/
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      C. E. Donaldson, V. Dobson, T. K. Green, E. M. Harvey; Success Rate and Confidence Ratings of the Suresight Autorefractor for Testing Infants and Young Children. Invest. Ophthalmol. Vis. Sci. 2008;49(13):1428. doi: https://doi.org/.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract
 
Purpose:
 

To determine success rates and examine confidence ratings of the SureSight (SS, Welch Allyn) Autorefractor, as a function of age, in assessment of refractive error in infants and young children from a Native American population with a high prevalence of astigmatism.

 
Methods:
 

Subjects were 956 children, aged 6 months to 8 years, recruited through Women, Infants and Children (WIC) clinics, the Head Start Program, and K and 1st grade elementary school classrooms on the Tohono O’odham Reservation between 2005 and 2007. Three non-cycloplegic right-eye SS (child mode) measurements were attempted on each child. Results were grouped by age: 6 months to <1 year, 1 to <2 years, 2 to <3 years, 3 to <4 years, 4 to <5 years, 5 to <6 years, 6 to <7 years and 7 to <8 years. Confidence ratings were categorized as <6 or ≥ 6 (the confidence rating recommended by the manufacturer).

 
Results:
 

On average, 2.7 measurements were obtained for each child and this number did not vary by age. No measurement could be obtained for 5% of subjects. The proportion of children for whom the confidence rating on the first measurement was ≥ 6 ranged from 53.6% at 6 months to <1 year to 90% at 6 to <7 years and varied significantly by age group (graph). Confidence ratings ≥ 6 on at least one of a maximum of 3 readings ranged from 76.8% at 6 months to <1 year to 97.5% at 6 to <7 years and varied significantly by age group (graph). Allowing 3 measurements significantly improved the probability of obtaining a rating ≥ 6 in all age groups except 6 to < 7 years (ps < 0.05).

 
Conclusions:
 

SS success rate in obtaining at least 1 measurement was high across all age groups. Allowing 3 measurements significantly increased the likelihood of obtaining a rating ≥ 6.  

 
Keywords: infant vision • refractive error development • detection 
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