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Comparing low-cost handheld autorefractors: A practical approach to measuring refraction in low-resource settings


Autoři: Arunika Agarwal aff001;  David E. Bloom aff001;  Vincent P. deLuise aff002;  Alyssa Lubet aff003;  Kaushik Murali aff004;  Srinivas M. Sastry aff005
Působiště autorů: Department of Global Health and Population, Harvard T.H. Chan School of Public Health, Boston, United States of America aff001;  Department of Ophthalmology, Yale University School of Medicine, New Haven, Connecticut, United States of America aff002;  Center for Education Policy Research, Harvard University Graduate School of Education, Cambridge, MA, United States of America aff003;  Sankara Academy of Vision, Sankara Eye Hospital, Bangalore, Karnataka, India aff004;  Bethesda Retina, Bethesda, Maryland, United States of America aff005
Vyšlo v časopise: PLoS ONE 14(10)
Kategorie: Research Article
doi: https://doi.org/10.1371/journal.pone.0219501

Souhrn

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.

Klíčová slova:

Diagnostic medicine – Elderly – Eyes – Socioeconomic aspects of health – Vision – Visual acuity – Visual impairments – Blindness


Zdroje

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2. Chia E-M, Mitchell P, Ojaimi E, Rochtchina E, Wang JJ. Assessment of Vision-Related Quality of Life in an Older Population Subsample: The Blue Mountains Eye Study. Ophthalmic Epidemiol [Internet]. 2006 Jan 8 [cited 2019 Apr 30];13(6):371–7. Available from: http://www.ncbi.nlm.nih.gov/pubmed/17169850 doi: 10.1080/09286580600864794 17169850

3. Langelaan M, de Boer MR, van Nispen RMA, Wouters B, Moll AC, van Rens GHMB. Impact of Visual Impairment on Quality of Life: A Comparison With Quality of Life in the General Population and With Other Chronic Conditions. Ophthalmic Epidemiol [Internet]. 2007 Jan 8 [cited 2019 Apr 30];14(3):119–26. Available from: http://www.ncbi.nlm.nih.gov/pubmed/17613846 doi: 10.1080/09286580601139212 17613846

4. World Health Organization. Blindness and Visual Impairment (Fact sheet). 2017.

5. Ramke J, Zwi AB, Palagyi A, Blignault I, Gilbert CE. Equity and Blindness: Closing Evidence Gaps to Support Universal Eye Health. Ophthalmic Epidemiol. 2015 Sep;22(5):297–307. doi: 10.3109/09286586.2015.1077977 26395657

6. Gordois A, Pezzullo L, Cutler H. The Global Economic Cost of Visual Impairment AMD Alliance International Commercial-in-Confidence. Canberra; 2010.

7. Brown MM, Brown GC, Lieske HB, Lieske PA. Financial return-on-investment of ophthalmic interventions. Curr Opin Ophthalmol. 2014 May;25(3):171–6. doi: 10.1097/ICU.0000000000000040 24638114

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9. Harvey EM, Miller JM, Wagner LK, Dobson V. Reproducibility and accuracy of measurements with a hand held autorefractor in children. Br J Ophthalmol. 1997 Nov;81(11):941–8. doi: 10.1136/bjo.81.11.941 9505815

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Článek vyšel v časopise

PLOS One


2019 Číslo 10
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