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Abstract #5245 Published in IGR 1-2
Influence of corneal configuration (Corneal thickness, corneal curvature) on glaucomatous changes in ocular hypertension
Matsumoto T; Makino H; Uozato H; Saishin MFolia Ophthalmologica Japonica / Nihon Ganka Kiyo 1999; 50: 122-125
We studied the effect of central corneal thickness and corneal curvature on glaucomatous changes in visual fields in 78 eyes with ocular hypertension followed for at least 1 year. A total of 66 eyes with no glaucomatous changes in visual field (the no advancement group), 12 eyes with glaucomatous changes in visual field (the advancement group), and 118 normal control eyes were examined. There were no significant differences in average intraocular pressures among the groups during the follow-up period. However, central cornea thickness was significantly greater in the no advancement group than in the advancement group and the normal control group, and although there were no significant differences in average corneal curvature, the average radius of curvature tended to increase from least in the no advancement group to greater in the normal control group to greatest in the advancement group. Intraocular pressure in eyes with ocular hypertension is usually overestimated because of the increased corneal thickness and corneal curvature in these eyes, which results in higher rigidity. Thus, corneal shape may be responsible for glaucomatous changes in visual fields in hypertensive eyes.LA: Japanese
Dr. T. Matsumoto, Dept of Ophthalmol, Hoshigaoka Welfare Pension Hosp, 4-8-1 Hoshigaoka, Hirakata 573-8511; Japan
Classification:
6.1 Intraocular pressure measurement; factors affecting IOP (Part of: 6 Clinical examination methods)
