1963
DOI: 10.1136/bjo.47.2.95
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Refraction Anomalies in Tanganyikan Children

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Cited by 18 publications
(4 citation statements)
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“…Refraction as a basis for screening children for squint and amblyopia Johnstone and McLaren (1963), is satisfactory for recording broad overall changes in the refraction of large population samples, but it does not allow for enough of the details which are so necessary for this type of investigation.…”
Section: Methodsmentioning
confidence: 99%
See 1 more Smart Citation
“…Refraction as a basis for screening children for squint and amblyopia Johnstone and McLaren (1963), is satisfactory for recording broad overall changes in the refraction of large population samples, but it does not allow for enough of the details which are so necessary for this type of investigation.…”
Section: Methodsmentioning
confidence: 99%
“…The method that has been used most commonly is to record the spherical equivalent or the mean of the spherical equivalents of the two eyes. This method, which has been criticised by 8 Johnstone and McLaren (1963), is satisfactory for recording broad overall changes in the refraction of large population samples, but it does not allow for enough of the details which are so necessary for this type of investigation.…”
Section: Methodsmentioning
confidence: 99%
“…In einer Studie aus den 60er-Jahren an Schülern aus der Region zeigt sich in der Population kein höherer Astigmatismus als üblich [7]. Dennoch betrug der postoperative Astigmatismus -2,2 dpt mit einer Achse von 113 Grad.…”
Section: Diskussionunclassified
“…Inter marriage between the two races is met with. The difference in the incidence of vitreo-retinal pathology between Caucasians and Africans is well established [58][59][60], Thus, symptomatic peripheral retinal breaks are more carefully considered in Caucasians than in negroes, especially those associated with myopia, which is also more predominant in Caucasians than in Africans [61][62][63].…”
Section: B Symptomatic Peripheral Retinal Breaksmentioning
confidence: 99%