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PROGNOSIS OF REFRACTIVE CORRECTIONS
Author(s) -
Saunders H.
Publication year - 1985
Publication title -
ophthalmic and physiological optics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.147
H-Index - 66
eISSN - 1475-1313
pISSN - 0275-5408
DOI - 10.1111/j.1475-1313.1985.tb00683.x
Subject(s) - refractive error , mean squared prediction error , random error , confidence interval , statistics , term (time) , standard error , interval (graph theory) , sample (material) , mathematics , medicine , physics , eye disease , ophthalmology , thermodynamics , combinatorics , quantum mechanics
— The validity and efficacy of the prognosis equation published by Saunders (1984b) is tested against previously reported longitudinal data. In a fair and random sample and over a short interval, nearly 60% of the sample was found to have a prediction error of less than 0.25 DS and, in 92%, the error involved was less than 0.5 DS. Long‐term prediction was found to have a less favourable outcome but 50% were correct within an error of 0.5 DS and 90% were found to have a prediction error of less than 1 DS. The largest prediction errors occur in the medium to high myopes whose myopia progresses rapidly.