ABSTRACT
Background: Measurement of the accurate IOP is important not only for classification, but for the clinical management of the glaucoma patients. The aim of this study to determine the difference in mean CCT among POAG and Ocular Hypertension. Materials & Methods: A hospital based comparative type of observational study done on 120 eyes of 60 patients was conducted under Department of Ophthalmology, Government D.B. Hospital, Churu, Rajasthan. To be safe and accurate, following factors should be checked before making a glaucoma diagnosis. The preliminary eye examination included the visual acquity and slit lamp biomicroscopy of the anterior segment, to rule out any corneal pathology and refraction. The intraocular pressure was recorded by using Goldmann Applanation Tonometry (GAT). Results: Our study showed that the most of the study subjects in POAG group (46.6%) were in >50 years age group, while most of the subjects in OH group (46.6%) were in 41-50 years age group and there were 19 (63.3%) male in POAG group while in OH group there were 23 (76.7%) males. The mean CCT in right eye & left eye was higher in OH group (568.4 & 562.2 respectively) as compared to POAG group (507.8 & 504.2 respectively) and this difference was found to statistically significantly on application of unpaired t test (P<0.001& P<0.001 respectively) and IOP was also statistically significant(P<0.001) in both eyes. Conclusion: We concluded that the measurement of the central corneal thickness aid the ophthalmologist in making a correct diagnosis and in a better management of glaucoma and the glaucoma suspects, especially when their corneal thickness differs markedly from the normal thickness. AQ