298ASSESSMENT OF OPTIC NERVE PARAMETERS IN PSEUDOEXFOLIATION: OCT VS. HRT COMPARISONThis study compares and evaluates the effectiveness of optical coherence tomography (OCT) and Heidelberg retina tomography (HRT) systems in measuring optic nerve head (ONH) parameters. Participants with elevated intraocular pressure (IOP) and pseudoexfoliation syndrome, as well as those without these conditions, were included. A total of 96 participants aged 65 to 78 were enrolled, with 28 in the normal group and 68 with pseudoexfoliation. IOP was found to increase in pseudoexfoliation groups compared to controls. Measurements of RNFL thickness and visual field parameters were taken using OCT, HRT, and automated perimetry. Results showed significant differences in RNFL thickness and rim area between the normal group and those with pseudoexfoliation, with more pronounced differences in the latter. Both OCT and HRT demonstrated changes in ONH and RNFL parameters, suggesting their potential for early detection of optic nerve damage. Further research is warranted to explore the utility of these imaging modalities in clinical practiceDr S Surrender@gmail.comResearch922019 Optical coherence tomography (OCT), Heidelberg retina tomography (HRT)Dr Balki Satya Prasad,Dr Surender SAssistant Professor, Department of Opthalmology, Nimra Institute of Medical Sciences, Jupudi, Vijayawada, India.,Assistant Professor, Department of Opthalmology, Nimra Institute of Medical Sciences, Jupudi, Vijayawada, India.