A longitudinal study of the age-dependence of human ocular refraction--I. Age-dependent changes in the equivalent sphere.
Following on from a cross-sectional analysis of refraction data (Saunders, 1981), the present paper attempts the evaluation of serial recordings of a new sample of refractive corrections using longitudinal methods. This study compares the results of the cross-sectional and longitudinal methods, investigates whether or not the latter supports the conclusions of the former, examines to what accuracy this is achieved and, where the results differ, seeks a reason for this. It is demonstrated that in spite of such differences the two methods coincide in their conclusions.
Saunders
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D000293:Adolescent; D000328:Adult; D000368:Aged; D000375:Aging; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D006956:Hyperopia / Q000453:epidemiology; D007223:Infant; D008297:Male; D008875:Middle Aged; D009216:Myopia / Q000453:epidemiology; D011379:Prognosis; D012029:Refraction, Ocular; D012030:Refractive Errors / Q000453:epidemiology; D006113:United Kingdom