advertisement
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) mmHg. 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 = -.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.
Dr. R. Sihota, Department of Ophthalmology, Dr. R.P. Centre for Ophthalmic Sciences, All India Institute of Medicine Sciences, New Delhi, India
6.1 Intraocular pressure measurement; factors affecting IOP (Part of: 6 Clinical examination methods)