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SYMPOSIUM - DIABETIC RETINOPATHY UPDATE
Year : 2014  |  Volume : 2  |  Issue : 1  |  Page : 3-18

Screening for sight-threatening diabetic retinopathy: An update


1 Department of Ophthalmology, Gloucestershire Diabetic Retinopathy Research Group, Office Above Oakley Ward, Cheltenham General Hospital, Cheltenham, GL53 7AN; The NHS Diabetic Eye Screening Programme, Victoria Warehouse, The Docks, Gloucester, GL1 2EL, England, United Kingdom
2 Department of Ophthalmology, Centre for Eye Research Australia, University of Melbourne, Royal Victorian Eye and Ear Hospital, East Melbourne, VIC 3002, Australia

Correspondence Address:
Prof. Peter Henry Scanlon
Gloucestershire Diabetic Retinopathy Research Group, Office above Oakley Ward, Cheltenham General Hospital, Sandford Road, Cheltenham, GL53 7AN, England
United Kingdom
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Source of Support: The research work that is undertaken on screening intervals by PHS, including an on.going literature review in this field, has been supported by a grant from the Health Technology Assessment Program, Conflict of Interest: None


DOI: 10.4103/2347-5617.152479

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Aims: To review the literature on Screening for Diabetic Retinopathy. Materials and Methods: A comprehensive review of the English language literature, published from March 1980 to June 2014 using key words in Zetoc. Results: Several methods were found to achieve adequate sensitivities and specificities for diabetic retinopathy screening. Studies were compared with respect to (a) Classifications used to grade diabetic retinopathy (b) The evidence for population-based screening for diabetic retinopathy (c) Alternatives to digital photography for screening (d) Reference standards used to study the effectiveness of screening methods (e) The evidence for mydriatic versus non-mydriatic digital photography, or a combination of the two (f) The number of photographic fields captured (g) Measurement of distance visual acuity (h) Cost-effectiveness of screening for diabetic retinopathy (i) Future developments in screening for diabetic retinopathy Conclusion: Based on an assessment of available studies, the most effective DR screening strategy is the use of mydriatic or staged mydriasis with digital retinal photography. Variables between different screening strategies include whether Visual Acuity is measured and the number of fields captured.


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