Correlation between presence of primary iris- and cilliary body cysts and intraocular pressure

K.-C. Xue, D.-D. Hu, L. Zhao, N. Li, H.-Y. Shen

Institute of Xuzhou Eye Prevention and Control, Department of Ophthalmology, the First People’s Hospital of Xuzhou City, Jiangsu Province, China. 630yifan@163.com

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• Ophthalmology

OBJECTIVE: The objective of this study was to examine the correlation between the presence of primary iris-ciliary cysts and the intraocular pressure.

PATIENTS AND METHODS: Sixty patients with short-sightedness undergoing routine examination for laser vision correction in our hospital in 2003 were enrolled. Patients with known high intraocular pressure and risk of glaucoma were excluded from the study. A total of 119 eyes were examined by the Ultrasound Biomicroscope (UBM), and the presence of the primary iris-ciliary cysts was confirmed. Intraocular pressure was measured by using a blowing tonometer for each eye in triplicate. Through Pentacam correction of intraocular pressure using the Ehlers formula, the influence of the thickness of central cornea on intraocular pressure was excluded.

RESULTS: Among all participants, 62 eyes (52.1%) were with high myopia, 57 eyes (47.9%) with low and moderate myopia, 27 eyes (22.7%) with single cyst, 20 eyes (16.8%) with multiple cysts, and 72 eyes (60.5%) were free from cysts. Moreover, the intraocular pressure was found within the normal range in 72 eyes (60.5%), and abnormally high in 47 eyes (39.5%).

CONCLUSIONS: Our results showed that the presence of primary iris-ciliary cysts and the intraocular pressure were positively correlated, with a correlation coefficient of 0.235 (p = 0.01). These findings may prove useful for prediction and screening of high intraocular pressure.

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