Related Experiment Video
Updated: Jul 6, 2026

Full-Circle Cauterization of Limbal Vascular Plexus for Surgically Induced Glaucoma in Rodents
Published on: February 15, 2022
Results of extraocular muscle surgery in WEBINO bilateral internuclear ophthalmoplegia patients
Gill Roper-Hall1, Oscar A Cruz, Sophia M Chung
1Department of Ophthalmology, Saint Louis University, St. Louis, Missouri 63104, USA. grh@slu.edu
Purpose:
To evaluate the results of extraocular surgery in patients with large exotropias from "wall-eyed" bilateral internuclear ophthalmoplegia (WEBINO).
Methods:
Eight patients with WEBINO evaluated between November 1994 and October 2006 underwent extraocular muscle surgery. Three patients required a second procedure.
Results:
An 85% reduction in exodeviation occurred postoperatively. Fusion responses were demonstrable in 87.5% of patients. Other ocular signs of internuclear ophthalmoplegia (INO) such as adduction limitation, abducting nystagmus, and ocular dysmetria also improved. These results were obtained following two-staged unilateral recession-resection procedures in seven patients; the remaining patient underwent bilateral lateral rectus recessions.
Conclusions:
Binocular outcomes are achievable in patients with WEBINO following extraocular muscle surgery, and associated ocular signs may be reduced or eliminated.
Related Concept Videos
Muscles of the Eye
Extraocular Muscles
The six extraocular muscles surround the eyeball and control its movements. They are responsible for a wide range of eye motions, including looking up, down, left, right, and rotating...
Accessory Structures of the Eye
