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¹İstanbul Bilim Üniversitesi Tıp Fakültesi Göz Hastalıkları A.D., İstanbul, Yard. Doç. Dr.
²Yeditepe Üniversitesi Tıp fakültesi Göz Hastalıkları A.D., İstanbul, Yard. Doç. Dr.
³İstanbul Bilim Üniversitesi Tıp Fakültesi Göz Hastalıkları A.D., İstanbul, Asist. Dr.
⁴İstanbul Bilim Üniversitesi Tıp Fakültesi Göz Hastalıkları A.D., İstanbul, Prof. Purpose: To evaluate the correlation between intraocular pressure (IOP) and corneal hysteresis (CH) in cases patients with primary open angle glaucoma (POAG) and normaltension glaucoma (NTG).
Materials and Methods: The This prospective study was prospectively realised by included 28 newly -diagnosed POAG patientscases (group I), and 24 newly -diagnosed normaltension glaucoma patientscases (group II). The patients who had a history of previous ocular surgery before or who had connective tissue disorders, and over +/-3 dioptric refractive error were excluded. The IOP and CH were measured by Ocular Response Analyzer (ORA) and the resutsresults were compared and discussed.
Results: There were 28 cases patients in group 1 and 20 cases in group 2. The mean IOP was 27b51±7.57 mmHg, mean CH was 8.83±1.97 mmHg, and central corneal thickness (CCT) was 568.50±25.78 mm in group 1. The mean IOP was 17.83±2.88 mmHg, mean CH was 9.43±1.04 mmHg, and CCT was 550.71±33.84 mm in group 2.
Conclusion: It has been detected that, there was a negative correlation up to 90% in POAG and 54% in NTG between IOP and CH in both groups. We consider iIncreased CH could be a risk factor for glaucoma. Keywords : Glaucoma, corneal hysteresis, central corneal thickness, intraocular pressure