Determination of Intraocular Pressure with the Perkins Applanation Tonometer and Non-Contact Tonometer

Abstract

Early identification of GC is crucial, as studies have demonstrated, as successful and lifelong treatment for GC prevents significant visual function loss. This is why we chose to compare PA-TN with NC-TN readings for IOP in our study. Each patient had a complete opthalmological evaluation, beginning with a thorough h/o and ending with VA, AS and fundus tests. Two types of TN, known as NC-TN and PA-TN, were used on the patients. All patients with IOP between 10 and 21 were included, and first NC-TN and subsequently PA-TN values were collected. The mean was then determined from three separate readings, two from residents and one from a member of the support staff. In our study, for Relationship of IOP by NC-TN v/s PA-TN, we found that T15.46±1.8 and 15.30±1.87 for RE and NC-TN were 15.41±1.86 and 14.96±1.87 for LE, respectively. On the other hand, the average of PAT was 15.44±1.83 and the average of NCT was 15.13±1.87. Based on our analysis, it can be concluded that NC-TN has effectively exhibited its reliability as a screening tool