It has been known for some time that refractive changes occur during adolescence and early adult life, just as they do in childhood and puberty. Although most physiologists consider these to be associated with the continuing growth process, there is a minority group which links such changes to other causes. Genetic contributions, racial predisposition, nutritional influences, convergence effects, and the excessive use of the eyes for close work have all been advanced as possible explanations for the changes in refraction that develop in healthy young people after the period of rapid growth has passed. With the exception of those cases where visual deficiency is due to pathology, the problem is ordinarily not of major importance and is easily corrected by the prescription and use of glasses.
Consideration of the refractive changes in young people has received only occasional attention in the past.* However, there has been a transition in our
HYNES EA. Refractive Changes in Normal Young Men. AMA Arch Ophthalmol. 1956;56(5):761-767. doi:10.1001/archopht.1956.00930040769017