Distribution and Determinants of Intraocular Pressure in a Normal Pediatric Population

Sihota, Ramanjit; Tuli, Deven; Dada, Tanuj; Gupta, Viney; Sachdeva, Murli Manohar
January 2006
Journal of Pediatric Ophthalmology & Strabismus;Jan/Feb2006, Vol. 43 Issue 1, p14
Academic Journal
Purpose: To examine the intraocular pressure (IOP) of a normal pediatric population under topical anesthesia without sedation and its correlation with other ocular parameters. Subjects and Methods: The IOP of 810 eyes of 405 patients with ages ranging from 0 to 12 years was measured using the Perkins applanation tonometer. Cooperative patients also underwent pachymetry, refraction, and biometry measurements. Results: The mean (± standard deviation) age was 6.68 (± 3.28) years, with a mean (± standard deviation) IOP of 12.02 (± 3.74) mm Hg. IOP showed an increasing trend with age (correlation coefficient [r] = 0.49) and tended to approach adult levels by 12 years of age. The IOP correlated directly with refraction (r = 0.69) and pachymetry (r = 0.39) and inversely with axial length (r = -0.1). Conclusions: The IOP in children is much lower than that in adults. It was noted to increase with age, hyperopia, and corneal thickness and was inversely proportional to axial length.


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