Little evidence for an epidemic of myopia in Australian primary school children over the last 30 years.

In general, mean refraction demonstrates a highly significant shift towards less hyperopia with increasing age (p < 0.0001) from 0.73 ± 0.1DS for 4 year olds to 0.21 ± 0.11 for 12 year olds, however this is more noticeable after the age of 9 years as seen in Fig. 1 .

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