Distribution and determinants of intraocular pressure in a normal pediatric population.
To examine the intraocular pressure (IOP) of a normal pediatric population under topical anesthesia without sedation and its correlation with other ocular parameters.



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.



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 coefficieit [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).



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.
Department of Ophthalmology, Dr. R.P. Centre for Ophthalmic Sciences, All India Institute of Medicine Sciences, New Delhi, India.
Ramanjit
R
Sihota
Deven
D
Tuli
Tanuj
T
Dada
Viney
V
Gupta
Murli Manohar
MM
Sachdeva
D000367:Age Factors; D000772:Anesthesia, Local; D000779:Anesthetics, Local / Q000008:administration & dosage; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007429:Intraocular Pressure / Q000502:physiology*; D009883:Ophthalmic Solutions; D012016:Reference Values; D012029:Refraction, Ocular; D014065:Tonometry, Ocular / Q000379:methods
D000779:Anesthetics, Local; D009883:Ophthalmic Solutions