Most children who need glasses have at least one parent who already wears glasses and this has to do with heredity. Although not yet proven, it seems sensible to have hereditary correlation, since the reasons which cause a refractive error are associated primarily with the construction of the eye.
Parents always have something to share about their own experiences on the use of glasses. Most often, they say that sometime in their childhood, they were prescript with glasses which they occasionally wore at the beginning, but then ended up using them more and more with the ultimate effect of continued use.
The refractive abnormalities include myopia, hyperopia, astigmatism and presbyopia, with the latter not applying in childhood.
Myopia is the most common refractive abnormality. The child is able to clearly see objects that are close to him but cannot distinguish those that are...