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. 1979 May;63(5):339-42.
doi: 10.1136/bjo.63.5.339.

Changes in refraction between the ages of 1 and 3 1/2 years

R M Ingram, A Barr

Changes in refraction between the ages of 1 and 3 1/2 years

R M Ingram et al. Br J Ophthalmol. 1979 May.

Abstract

A study has been made of the changes in refraction as a sample of 148 children grew between the ages of 1 and 3 1/2 years. There was no decrease in hypermetropia, but there was a significant decrease in the incidence of astigmatism. Study of the changes in the refraction in the horizontal and vertical meridia of individual eyes gave clear evidence of a trend towards emmetropia if the initial refraction in either meridian was myopic or less than +2.50 D. Above that level the refraction became more or less hypermetropic.

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References

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