Traumatic retinal break from a viscoelastic cannula during cataract surgery.

etazolamide. After resolution of the corneal edema, the patient’s vision improved to 20/20. During the next year our patient experienced recurrent episodes of elevated intraocular pressure and was diagnosed as having Posner-Schlossman syndrome. There was no further visual field loss associated with her subsequent attacks of elevated pressures and no evidence of recurrence of NAION. Her visual field deficit showed mild improvement at the 1-month visit but remained stable thereafter. Two months later, her left optic nerve showed mild temporal pallor and resolved edema.