Vision Res. 1995 May;35(9):1325-8.

Emmetropisation in human infancy: rate of change is related to initial refractive error.

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Department of Vision Sciences, Glasgow Caledonian University, U.K.

Abstract

Animal studies show that the rate of recovery from experimentally induced refractive errors is related to the level of ametropia induced. The present study examined the rate of emmetropisation occurring in a sample of 22 human infants refracted by near retinoscopy during the first six months of life and then again between 12 and 17 months old. None of the subjects were myopic. Regression analysis revealed that emmetropisation occurred more rapidly in the presence of high refractive errors (P < 0.005 and P = 0.001 for hyperopia and astigmatism respectively). These data confirm the findings of the animal studies and suggest that non-reducing hyperopia and astigmatism in the second year of life may require correction.

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Emmetropisation in human infancy: rate of change is related to initial refractive error.

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