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1 General aspects (0)   1.1 Epidemiology (6)   1.2 Population genetics (0)   1.3 Pathogenesis (4)   1.4 Quality of life (6)   1.5 Glaucomas as cause of blindness (1)   1.6 Prevention and screening (3) 2 Anatomical structures in glaucoma (0)   2.1 Conjunctiva (3)   2.2 Cornea (5)   2.3 Sclera (2)   2.4 Anterior chamber angle (2)   2.5 Meshwork (1)     2.5.1 Trabecular meshwork (8)     2.5.2 Schlemms canal (2)     2.5.3 Scleral outlet channels (0)   2.6 Aqueous humor dynamics (0)     2.6.1 Production (2)     2.6.2 Outflow (4)       2.6.2.1 Trabecular meshwork (0)       2.6.2.2 Uveoscleral (0)     2.6.3 Compostion (1)   2.7 Episcleral veins and venous pressure (0)   2.8 Iris (0)   2.9 Ciliary body (0)   2.10 Lens (0)   2.11 Vitreous body (0)   2.12 Choroid, peripapillary choroid, peripapillary atrophy (1)   2.13 Retina and retinal nerve fibre layer (11)   2.14 Optic disc (9)   2.15 Optic nerve (4)   2.16 Chiasma and retrochiasmal central nervous system (0)   2.17 Stem cells (0)   2.20 Other (0) 3 Laboratory methods (10)   3.1 Microscopy (1)   3.2 Electron microscopy (5)   3.3 Immunohistochemistry (9)   3.4 Molecular genetics (1)     3.4.1 Linkage studies (16)     3.4.2 Gene studies (2)   3.5 Molecular biology incl. 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Abstract #11411 Published in IGR 6-3

Effect of corneal topographic characteristics on intraocular pressure measured by uncontact tonometer

Zhao M; Wu H; Song Y
Chinese Ophthalmic Research 2004; 22: 516-517

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OBJECTIVE: To investigate the effect of corneal topographic indices and central corneal thickness (CCT) on the measured result of un-contact tonometer. METHODS: Intraocular pressure (IOP) was measured on 1 308 eyes with the diopter of -0.75 DS- -25.00 DS using un-contact tonometer. Corneal refractive power (SimK), symmetry (SRI) and corneal center regulation (SAI) were measured with corneal topographer. Multivariate linear regression analysis was used to study the relationship between independent variables and IOP readings. RESULTS: CCT and SimK1 were significantly correlated with IOP readings (P < 0.01), while SRI, SAI were not correlated with IOP readings (P > 0.05). CONCLUSION: The CCT and corneal refractive power (SimK1), but SAI and SRI, affect the measured results of un-contact tonometer significantly. LA: Chinese

Dr. M. Zhao, Department of Ophthalmology, Second Hospital of Jilin University, Changchun 130041, China

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Classification:

6.1 Intraocular pressure measurement; factors affecting IOP (Part of: 6 Clinical examination methods)

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