A COMPARATIVE APPROACH TODETECT GLAUCOMA IN RETINAL IMAGES

Abstract

Glaucoma is an eye ailment which is instigatedgenerally due to arise in the intra ocular pressure in the eye and affects the vision of the person if not treated at the early stage.  Due to its slow progressiveness and often with no symptom of its own, many people are ignorant of this until it reaches a complicated stage. As it is preventable and not curable, there arises an urgent need to create awareness about glaucoma among people. With periodical screening of retina, there is a possibility of starting treatment at an early stage so as to avoid loss of sight. The existing imagingmodalitiesare expensive and hencean economical method of diagnosis isrequired. The aim of this article is to compare the performance of two pixel based techniques, in which one appliesan intensity based technique and the other applies a distance based clusteringtechnique insegmenting the optic disc and optic cup from the retinal fundus image and in calculating cup to disc ratio so as to helpidentify glaucoma in a cost efficient way using MATLAB.