Note:  Do not rely on this information. It is very old.


Asthenopia, a term applied to a group of symptoms associated with certain ocular defects. Thus in Hypermetropia (q.v.) headache with pain and inflammation on use of the eyes are commonly met with. Asthenopia is too frequently overlooked, or at any rate it is not recognised that the eyes are at fault. Persistent headaches in children should always suggest the necessity of a professional opinion upon the eyesight.