[Binocularity after treatment for constant exotropia].


We studied the binocularity of cured chronic exotropic patients and discussed the critical period of gross stereopsis and its vulnerability. An infant, developing chronic exotropia associated with myasthenia gravis at the age of 17 months, returned to exophoria 10 months later and showed a stereo-acuity of 800 sec. This clinical finding suggests that the… (More)