RAPDx Expanded Pupil Diagnostics: A new Dimension in Pupil Evaluation.
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Date
2015-09
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Abstract
Introduction: Relative afferent pupillary defect (RAPD) is an imperative sign to assess the retinal and optic nerve
function. However, RAPD is subjective, so leads to discrepancies and hence there is the need for a precise quantification
of the same.
Materials and Methods: 80 subjects were enrolled in the study, pupillary reactions were measured using RAPDx
Expanded Pupil Diagnostics (Konan Medical USA, Inc., Irvine, CA, USA) and were compared with neutral density filter
(NDF) (Gulden Ophthalmics) and swinging flashlight test.
Results: The mean pupillary reactions assessed on NDF was less than 0.3 log units and that assessed on RAPDx was 0.28
log units (P<0.001 spearman’s coefficient).
Conclusion: RAPDx is comparable to NDF and may be used as a screening tool in Ophthalmology clinic, and gives an
accurate and precise quantification of pupillary responses.
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Keywords
Pupil Diagnostics, RAPD, RAPDx
Citation
Aroor Chaithra D, Rawoof Abdul, Shetty Rohit, Deshpande Kalyani. RAPDx Expanded Pupil Diagnostics: A new Dimension in Pupil Evaluation. Journal of Vision Sciences, 2015 Sept-Dec; 1(3): V.