Ground-in Prisms Treatment in Small Angle Deviation Pre-and Post Operation

Vannee Dealakoom B. Sc., MHPED. (UNSW, Australia)
Surapongs Duangratana M.D., D.O.M.S.
Department of Ophthalmology, Faculty of Medicine, Chiang-mal University.

ABSTRACT Study the efficacy of ground-in prism in treatment of small angle deviation (pre and post operation), eighty-nine patients were the subjects of this study, thirty-four were esotropic pa tients and fifty-five were exotropic. The age of patients ranged from five to forty-four years old. The "good result" was determined by having binocular single vision in some degree and decrease in amount of deviation angle.

The study has shown no differences between the two groups of patients. The group of exotropic patiefits has good result up to 83.64% and 73.53% that of esotropic group. The treatment period of the two groups was similar but different in the consecutive patients which consecutive esotropia need an average of 20 months and 31 months for the consecutive exotropia.

Also in the abnormal retinal correspondence (ARC) the exotropia had more percentage of curable than esotropia.

Thai J Ophthalmol 1993 ; January - June 7 (1): 21~26