Assertion: astigmatism's vision | /r/CapableOf | screen for astigmatism
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text: AAPOS guidelines recommend that any vision screening with a photoscreener or other instrument should screen for astigmatism greater than 2 diopters if the child is between the ages of 12 months and 48 months, and greater than 1.5 diopters if the child is older than 48 months.