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Original article

Comparison of the Plusoptix S04 binocular autorefractor with cycloplegic refraction performed by an ophthalmologist

Author:

Laura M. Gilmartin

Orthoptic Department, Sligo General Hospital, Sligo, Ireland
About Laura M.
BSc (Hons)
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Abstract

Aim: To determine the accuracy of undilated binocular autorefraction using the PlusOptix S04 autorefractor, as compared with cycloplegic refraction performed by an ophthalmologist.

Methods: A retrospective search of orthoptic notes in Sligo General Hospital revealed 42 children (22 male, 20 female) who had a cycloplegic refraction performed by an ophthalmologist within 8 weeks of a PlusOptix S04 binocular autorefraction between March 2006 and July 2008. All children were under 8 years of age and had a deviation measurement of <10D. A local standard for an acceptable difference was set in conjunction with the consultant paediatric ophthalmologist. The completed data were sent to the clinical audit support team for collation and analysis.

Results: The standard for an acceptable spherical difference was only achieved in 67% of cases. The standard for an acceptable difference in anisometropia and astigmatism was achieved in 88% of cases.

Conclusion: The PlusOptix S04 binocular autorefractor was found to agree with a cycloplegic refraction performed by an ophthalmologist in 88% of anisometropic and astigmatic refractions. However, the spherical results were less reliable at only 67%. An underestimation of hypermetropia was shown.  Therefore cycloplegic refraction performed by an ophthalmologist is still necessary and not replaceable by an autorefractor.

DOI: http://doi.org/10.22599/bioj.28
How to Cite: Gilmartin, L.M., (2010). Comparison of the Plusoptix S04 binocular autorefractor with cycloplegic refraction performed by an ophthalmologist . British and Irish Orthoptic Journal . 7 , pp . 59–61 . DOI: http://doi.org/10.22599/bioj.28
Published on 01 Aug 2010.
Peer Reviewed

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