Efficacy of Cost-effective, Portable Nonmydriatic Fundus Camera, Manufactured in India, to Detect Retinal Pathology in Comparison with Regular Mydriatic Fundus Camera

Bhandary, Sulatha V and Rao, Lavanya G and Rao, Krishna A and Acharya, Raviraj Katte and Kusumgar, Pallak and Kamath, Asha (2015) Efficacy of Cost-effective, Portable Nonmydriatic Fundus Camera, Manufactured in India, to Detect Retinal Pathology in Comparison with Regular Mydriatic Fundus Camera. International Journal of Medical Science and Public Health, 4 (6). pp. 1-6.

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Abstract

Background: Diabetic retinopathy is a major public health problem and causes a huge economic burden. Therefore, a cost-effective screening tool for its detection is warranted. This study analyzes the efficacy of a low-cost, portable, Indian-made, nonmydriatic fundus camera as a tool for mass screening. Objective: To assess the potential to detect retinal pathology by cost-effective, portable, nonmydriatic fundus camera compared with regular dilated fundus imaging system and to assess its utility as a screening tool. Materials and Methods: A cross-sectional study was carried out at Kasturba Medical College, Manipal, Karnataka, India.The study period was from February 2011 to April 2011. Retinal images (n = 451) were captured using nonmydriatic fundus/test camera and regular mydriatic fundus camera. Diagnosis of normal fundus (n = 167), diabetic retinopathy (n = 180), and abnormal cup:disc ratio (n = 104) was made by a senior ophthalmologist, and then, the retinal images were classified by two ophthalmologist who were blinded to each other’s findings. SPSS, version 15, and kappa coefficient were used for statistical analysis.Results: Nonmydriatic camera was noted to have a sensitivity of 88.3% (159/180 images) and 100% in detecting diabetic retinopathy and abnormal cup-to-disc ratio, respectively. Diagnostic accuracy of 91.1% was noted in the detection of diabetic retinopathy with nonmydriatic camera in comparison with the regular camera, with kappa coefficient being 0.82 and p < 0.001.Conclusion: Nonmydriatic fundus camera being cost-effective, quick, convenient, and portable, with high sensitivity and diagnostic accuracy is a useful tool for mass screening of diabetic retinopathy and glaucoma.

Item Type: Article
Uncontrolled Keywords: Cost effective; Diabetic retinopathy; Indian made; Nonmydriatic fundus camera; Screening tool
Subjects: Medicine > KMC Manipal > Community Medicine
Medicine > KMC Manipal > Medicine
Medicine > KMC Manipal > Ophthalmology
Depositing User: KMC Manipal
Date Deposited: 25 Jun 2015 04:13
Last Modified: 24 Oct 2016 09:08
URI: http://eprints.manipal.edu/id/eprint/143126

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