| Literature DB >> 6637425 |
Abstract
The distribution of refractive errors, astigmatism, anisometropia, visual acuity and organic ophthalmic diseases were determined among 149 Finnish mentally retarded (IQ less than 70) children, aged 9-10 years. The case group was classified in 3 categories according to the degree of mental retardation. The control group (n = 100) was selected by random sampling.Entities:
Mesh：
Year: 1983 PMID： 6637425 DOI： 10.1111/j.1755-3768.1983.tb04354.x
Source DB: PubMed Journal: Acta Ophthalmol (Copenh) ISSN： 0001-639X