%A Parikh, Rajul
%A Naik, Milind
%A Mathai, Annie
%A Kuriakose, Thomas
%A Muliyil, JayaPrakash
%A Thomas, Ravi
%T Role of frequency doubling technology perimetry in screening of diabetic retinopathy.
%9 Original Article
%D 2006
%J Indian Journal of Ophthalmology
%R 10.4103/0301-4738.21609
%P 17-22
%V 54
%N 1
%U https://journals.lww.com/ijo/pages/default.aspx/article.asp?issn=0301-4738;year=2006;volume=54;issue=1;spage=17;epage=22;aulast=Parikh
%8 January 1, 2006
%X Purpose: To study the ability of frequency-doubling technology perimetry (FDT) to detect sight-threatening diabetic retinopathy.
Method: Fifty-eight eyes of fifty-eight patients with established diagnosis of diabetes mellitus with diabetic retinopathy, fifty-five eyes of fifty-five diabetic patients without retinopathy, and forty-one eyes of forty-one normals underwent FDT and dilated stereo-biomicroscopic fundus examination. The sensitivity and specificity of FDT in identification of "sight-threatening retinopathy" (severe and very severe nonproliferative diabetic retinopathy and proliferative diabetic retinopathy) and clinically significant macular edema (CSME) were determined.
Results: For the detection of sight-threatening retinopathy, two abnormal adjacent points depressed to any level on the 20-1 screening program had a sensitivity of 90.5% and specificity of 97.6%. At (assuming a) 10% prevalence of sight-threatening retinopathy in a diabetic clinic, two abnormal adjacent points anywhere in the field depressed to any level has a positive predictive value (PPV) of 48% with a negative predictive value of 98.8%. Sensitivity and specificity for the detection of CSME was poor.
Conclusions: The 20-1 screening program of the FDT is useful in the detection of sight-threatening diabetic retinopathy (PPV 48%). A normal 20-1 test rules out sight-threatening retinopathy. FDT was not useful in the detection of CSME.
%0 Journal Article
%I Wolters Kluwer Medknow Publications
%@ 0301-4738