Glokom-Katarakt
2008 , Vol 3 , Num 1
The Correlation Between Corneal Hysteresis and Intraocular Pressure in Primary Open-Angle Glaucoma and Nomal Tension Glaucoma
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
