The occurrence of amblyopia as a result of non-use has been deductively constructed and is not inductively proved by observation.
Leber has recently joined those cases which are described as blindness through blepharospasm, to amblyopia from disuse.
They are often preceded by strabismus, with or without ptosis; the strabismus, is usually accompanied by amblyopia.
There is thus caused a symmetrical weakening of vision (amblyopia) in the opposite fields.
After this digression let us turn again to amblyopia from disuse, and to the last trump which is played for it.
amblyopia and some loss of hearing also occurred, as well as mental failure.
amblyopia am·bly·o·pi·a (ām'blē-ō'pē-ə)
Dimness of vision, especially when occurring in one eye without apparent physical defect or disease.