Undercorrections following Surgery for Exotropia

Abstract

Surgery is performed for a variety of types of exodeviations as well as for a number of different purposes, including visual development, resolution of diplopia, and reconstruction. Undercorrections are statistically predictable, relatively common, and unavoidable with current techniques. Undercorrections may be apparent immediately after surgery, develop during the early postoperative period, or evolve months to years after the original procedure.

Undercorrections should be evaluated in the context of the original reason for surgical intervention while considering the magnitude of the exodeviation, the patient's ability to control the deviation, and the potential impact of the undercorrection on the patient's motor and sensory status. A number of therapeutic options are available for the management of undercorrections. Orthoptic approaches include occlusion, red lenses, stimulation of accommodation, and prisms. When reoperation is necessary, the choice of procedure depends upon the type of exodeviation, the initial operation, and the unique sensory and motor characteristics of the individual patient.

• exotropia
• surgery
• undercorrections
• prisms
• orthoptics