Progression of myopia in different ethnic groups in Malaysia

A cross-sectional study on a normal clinical myopic population reveals that there is a difference in the pattern of myopic progression between Malays and Chinese in Malaysia. It shows that while myopia in Malays stays relatively constant throughout 10 to 50 years of age, myopia in Chinese progresses...

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Bibliographic Details
Published inMedical journal of Malaysia Vol. 49; no. 2; pp. 138 - 141
Main Author Yeow, P T
Format Journal Article
LanguageEnglish
Published Malaysia 01.06.1994
Subjects
Adolescent
Adult
Age Factors
Child
China - ethnology
Female
Humans
Malaysia - epidemiology
Male
Middle Aged
Myopia - epidemiology
Myopia - ethnology
China
Malaysia
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Summary:A cross-sectional study on a normal clinical myopic population reveals that there is a difference in the pattern of myopic progression between Malays and Chinese in Malaysia. It shows that while myopia in Malays stays relatively constant throughout 10 to 50 years of age, myopia in Chinese progresses rapidly from 10 to 20 years of age, after which it starts to show hyperopic shift, reaching a level of myopia similar to that of Malays at around 35 years of age. In view of the above finding it is postulated that the difference in myopia between the two races may be due to excessive accommodation in Chinese, causing a temporary increase in crystalline lens power and hence an increase in myopia. Because the magnitude of myopia for both races for 10 +/- 1 years age group is relatively high, i.e. about -2.00 D, it is postulated that myopia in these ethnic groups may start much earlier than 10 years of age.
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ISSN:0300-5283