[Pay a special attention to the influences of age on children amblyopia diagnosis].
The degree of decline of visual acuity in amblyopia diagnosis is not same between the countries. The visual acuity less than 0.9 as amblyopia diagnostic criteria in our country is higher than that of the other countries. We found the 5% lower reference limit of the distance visual acuity among 3 approximately 6 years old children was less than 0.7. Less than 0.9 as diagnostic criteria is too high for younger children, which makes some developing children as amblyopia, more than millions of children were treated as amblyopia by mistakes. Considering the age influences on amblyopia diagnosis improperly, it would build up the higher referring rate and high false positive rate, increasing the screening expenses and family expenses during the children's vision screening. So we suggested that it should take a different visual acuity standard for younger children when diagnosing amblyopia.