Research on the central corneal thickness in the patients with ocular hypertension or primary open angle glaucoma

OBJECTIVE To research the central corneal thickness(CCT)in the patients with ocular hypertension or primary open angle glaucoma,and to investigate the effects of CCT on the intraocular pressure measured with Goldmann tonometer METHODS Central corneal thickness and intraocular pressure was determined in the thirty-six eyes of 18 patients with primary open angle glaucoma,26 eyes of 15 patients with ocular hypertension,and 36 eyes of 18 volunteers without glaucoma or ocular hypertension with ultrasound corneal thickness measuring equipment and Goldmann tonometer The data were analyzed statistic RESULTS The average of CCT was 572 76±37 42(μm)in the ocular hypertension group,and 548 41±34 15(μm)in the primary open angle glaucoma group IT was 547 22± 34 68(μm)in the control group It is obvious that the CCT values in the ocular hypertension group are higher than that in the primary open angle glaucoma group and normal control group There was not a significant difference of CCT values between the later two groups( P 0 05)Of patients in 46% eyes IOP was normal after their IOP was corrected CONCLUSION CCT is one of the most important factors during measurement on intraocular pressure The CCT value should be measured when ocular hypertension was determined