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Pubmed for Handhelds

PUBMED FOR HANDHELDS

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  • Title: Comparing low-cost handheld autorefractors: A practical approach to measuring refraction in low-resource settings.
    Author: Agarwal A, Bloom DE, deLuise VP, Lubet A, Murali K, Sastry SM.
    Journal: PLoS One; 2019; 14(10):e0219501. PubMed ID: 31614363.
    Abstract:
    PURPOSE: To compare and validate the accuracy and ease of use of handheld autorefractors against retinoscopic refraction by an ophthalmologist for assessing the visual acuity of older adults in India. METHODS: 190 patients were enrolled at the Sankara Eye Hospital in Bangalore, India, to undergo refraction using three different handheld devices-Retinomax (Nikon Inc., Japan), Netra (Eyenetra, Inc., USA), and QuickSee (PlenOptika, Inc., USA)-and the results were compared with cycloplegic retinoscopy and refraction done by an ophthalmologist. We analyzed the mean, standard deviation (S.D.), and Bland-Altman comparison of dioptric (D) power accuracy. RESULTS: The difference between the handheld devices and subjective refraction for each device was: Retinomax (N = 186), mean -0.41 D, S.D. 2.14; Netra (N = 179), mean 0.61 D, S.D. 2.20; and QuickSee (N = 182), mean -0.05 D, S.D. 1.04. CONCLUSION: The QuickSee and the Retinomax may be used successfully as refraction screening tools in epidemiologic studies of adults in India and as diagnostic tools in low-resource settings.
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