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Abstract #45677 Published in IGR 13-2
Corneal Hysteresis in Normal Subjects and in Patients with Primary Open-Angle Glaucoma and Pseudoexfoliation Glaucoma
Ayala MOphthalmic Research 2011; 46: 187-191
Purpose: To identify differences in corneal hysteresis (CH) between primary open-angle glaucoma (POAG), pseudoexfoliative glaucoma patients (PXSG) and a healthy control group. Methods: In this retrospective study, CH was measured with the Ocular Response Analyzer. 90 subjects were evaluated, 30 subjects in each group. One eye per subject was analyzed. Results: In normal eyes, POAG and PXSG, CH was 9.8 (plus or minus) 1.6, 9.0 (plus or minus) 1.9 and 8.0 (plus or minus) 1.5 mm Hg, respectively. CH was significantly lower in PXSG patients than in POAG (p = 0.042) and normal patients (p = 0.0001), but no significance was found between the POAG and the normal group (p = 0.23). Conclusion: CH differs in the different groups and might be considered in glaucoma evaluation. Further studies with larger sample sizes are needed.
Glaucoma Department, St. Eriks Eye Hospital, Karolinska Institutet, Stockholm, Sweden
Classification:
9.4.4.1 Exfoliation syndrome (Part of: 9 Clinical forms of glaucomas > 9.4 Glaucomas associated with other ocular and systemic disorders > 9.4.4 Glaucomas associated with disorders of the lens)
2.2 Cornea (Part of: 2 Anatomical structures in glaucoma)
6.1.1 Devices, techniques (Part of: 6 Clinical examination methods > 6.1 Intraocular pressure measurement; factors affecting IOP)
