AUTOMATED KERATOCONUS DETECTION IN FELLOW EYES OF UNILATERAL CLINICALLY KERATOCONUS

Background Keratoconus is generally bilateral and follows an asymmetri cal course. The goal of this study was to evaluate efficiency of the a utomated topographic screening indices on early keratoconus by examina tion of the fellow eyes of clinically unilateral keratoconus. Patients and method We examined the fellow eyes of 5 cases of clinically unila teral keratoconus by videokeratography using TMS-1 Computed Anatomy de vice, which incorporates the keratoconus screening indices from Rabino witz (K and I-S values) and Klyce/Maeda (KPI value and other quantitat ive indices as OSI, DSI and CSI). Results One case (number I) had kera toconus detected by both Rabinowitz and Klyce/Maeda indices. Two cases (number 2 and 3) had normal keratoconus screening indices. Two cases (number 4 and 5) had keratoconus detected by Rabinowitz I-S value, wit h a 0% KPI value. Conclusions Rabinowitz indices are sensitive with a poor specificity. The Klyce/Maeda indices are less sensitive for but m ore specific. Both methods may be usefull for keratoconus detection. T he results must always be analysed in relation to a clinical observati on of both eyes and the course of the topographic changes.