SUGGESTED MECHANISM FOR ACUTE TRANSIENT MYOPIA AFTER SULFONAMIDE TREATMENT

This report describes the occurrence of acute transient myopia in a pa tient treated with sulfonamide. We followed this patient by performing A-scan ultrasonographic ocular measurements documenting the anterior chamber depth, lens thickness, and axial length during the acute and c onvalescent periods. The outstanding feature in this case was the docu mented ultrasonographically significant reduction of the anterior cham ber depth combined with lens thickening. This could be caused by a for ward displacement of the lens as a result of allergic ciliary body ede ma and rotation. These changes could explain the mechanism of drug-ind uced transient myopia.