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A choroidal nevus is a melanocytic choroidal lesion which is less than 5 mm in its largest basal diameter and smaller than 1 mm in its height.1 The clinical importance of choroidal nevi relates to their potential malignant transformation and reported association with visual impairment.2 The reported prevalence of choroidal nevi varies from 0.2% to 30%.3 ,4 Since most data on the prevalence of choroidal nevi did not originate from population-based studies, and because population-based data have not been available particularly for the Indian population, it was the purpose of our study to determine the frequency of choroidal nevi and their associations in a population-based investigation in India.
The Central India Eye and Medical Study is a population based cross sectional study performed in rural Central India.5 The Medical Ethics Committee of the Medical Faculty Mannheim …
Contributors Study design: VN, JBJ, SPJ; Collection of data: VN, JBJ, SA, AK, SL; Statistical analysis: VN, JBJ, SPJ; writing the manuscript: VN, JBJ, SPJ; Final approval of manuscript: VN, JBJ, SA, AK, SL, SPJ.
Funding This work was supported by unrestricted grants from Om Drishti Trust Nagpur; Heidelberg Engineering Co. Heidelberg, Germany; Rotary Sight Saver Netherlands; Orbis India; and Carl Zeiss Meditec Co., Jena, Germany.
Competing interests None.
Ethics approval The Medical Ethics Committee of the Medical Faculty Mannheim of the Ruprecht-Karls-University Heidelberg approved the study and all participants gave informed consent.
Provenance and peer review Not commissioned; externally peer reviewed.