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Abstract #49113 Published in IGR 14-1
Relationship Between Ocular Pulse Amplitude and Glaucomatous Central Visual Field Defect in Normal-tension Glaucoma
Lee M; Cho EH; Lew HM; Ahn JJournal of Glaucoma 2012; 21: 596-600
PURPOSE: To investigate the relationship between central visual field (VF) defects and ocular pulse amplitude (OPA) in early normal-tension glaucoma (NTG). PATIENTS AND METHODS: This retrospective study included 100 eyes of 100 subjects: 54 NTG patients whose mean deviations were better than -7.00 dB and 46 normal subjects. OPA was measured by dynamic contour tonometry. NTG patients were divided into 2 subgroups according to VF tests: the central VF-invading and the central VF-sparing groups. Ocular parameters including OPA, intraocular pressure (IOP), and indices of VF tests were analyzed in glaucoma patients and normal subjects. RESULTS: There was no difference in the OPA between the NTG and normal groups. However, IOP and OPA of the central VF-invading group (14.4±2.87 and 2.9±0.78 mm Hg) were higher than those of the central VF-sparing group (12.7±2.52 and 2.0±0.80 mm Hg; P=0.025 and P<0.001, respectively). OPA, but not IOP, showed a positive correlation with the VF test indices that represented central field defects (r=0.494, P<0.001). CONCLUSIONS: Increased OPA was related to more centrally located VF defects in NTG patients with mild VF defects.
Department of Ophthalmology, Ajou University School of Medicine, Suwon, Korea.
Full articleClassification:
9.2.4 Normal pressure glaucoma (Part of: 9 Clinical forms of glaucomas > 9.2 Primary open angle glaucomas)
6.11 Bloodflow measurements (Part of: 6 Clinical examination methods)
