Abstract
Objective: To find out the diagnostic accuracy of the Belin/ Ambrosio enhanced ectasia index test in keratoconus diagnosis
Material and methods: In this cross sectional study, both eyes of five hundred patients were included. Patients were included
in a systematic random manner from amongst those coming to Amanat eye hospital Peshawar from July 2018 to June 2019
to get rid of their glasses or aiming remedy for corneal bulging. Amanat eye hospital is located at university road in Peshawar
providing ocular diagnostic and treatment services. The tools used for the study were the Oculus Pentacam HR and the
Corvis ST. The collected data was analyzed statistically using SPSS version 23.
Results: The mean BAD-D value was 3.08+/- 4.45 SD, the SEM was 0.14, 95% confidence interval (CI) of 2.80 to 3.35. The
range was 0 to 40.21.The mean TBI value was 0.46+/_ 0.39 SD, SEM was 0.12 with a 95% CI of 0.22 to 0.70. The range of
TBI was 0 to 1.00. For BAD-D, sensitivity was 75.6 per cent, specificity was 100 %, positive predictive value was 100% and
the negative predictive value was 72.3%.
Conclusion: In terms of specificity and sensitivity, the current study showed acceptable diagnostic accuracy of BAD-D. It is
recommended that its result should be interpreted along with other topographic, and tomographic parameters.
Fazle Hanan, Mahfooz Hussain, Zaman Shah, Amir Asrar, Sundas Quresh. (2020) DIAGNOSTIC ACCURACY OF THE BELIN/AMBROSIO ENHANCED ECTASIA TOTAL DEVIATION DISPLAY (BAD-D) IN SCREENING KERATOCONUS TAKING TOMOGRAPHIC AND BIOMECHANICAL INDEX (TBI) AS THE GOLD STANDARD, Journal of Medical Sciences, Volume 28, Issue 3.
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