Related Experiment Video
Updated: May 24, 2026
04:16
Intraoperative Visualization of Subretinal Injection and Retinal Detachment in Rats
Published on: March 7, 2025
Diplopia following sub-tenon's anaesthesia: an unusual complication
Robert A Blum1, Lik Thai Lim, Clifford R Weir
1Department of Ophthalmology, Medical University of Vienna, Waehringer Gürtel 18-20, 1090, Vienna, Austria. robert.blum@meduniwien.ac.at
International Ophthalmology
|February 22, 2012
Summary
Sub-Tenon
Area of Science:
- Ophthalmology
- Anesthesia
Background:
- Diplopia is a rare complication of retrobulbar and peribulbar anesthesia.
- Sub-Tenon's local anesthesia (STLA) is less commonly associated with diplopia.
Observation:
- A 76-year-old woman developed vertical diplopia after phacoemulsification with STLA.
- She presented with significant left hypotropia, unresponsive to occlusion therapy.
Findings:
- A presumptive diagnosis of inferior rectus fibrosis was made.
- Surgical intervention (inferior rectus recession) resulted in partial recovery of ocular alignment.
Implications:
- This case suggests STLA can cause inferior rectus fibrosis, potentially due to muscle trauma or anesthetic myotoxicity.
- Highlights the need for careful technique and supervision during STLA administration.
More Related Videos
Related Concept Videos
01:25Glaucoma: Overview
Glaucoma is an eye condition characterized by increased intraocular pressure that damages the retina and optic nerve, leading to irreversible blindness if left untreated. The human eye has various components, including the cornea, iris, pupil, lens, and optic nerve. Aqueous humor is secreted by the epithelium of the ciliary body in the posterior chamber and flows through the trabecular meshwork and canal of Schlemm, maintaining normal intraocular pressure. The trabecular meshwork and the canal...
01:28Angle Closure Glaucoma: Treatment
Angle-closure glaucoma, or closed-angle glaucoma, is an eye condition where the iris bulges out and blocks the iridocorneal angle, resulting in a buildup of aqueous humor and increased intraocular pressure. Immediate medical attention is necessary due to the sudden onset of symptoms. The treatment for angle-closure glaucoma includes short-term and long-term approaches. Short-term treatment involves using eye drops like pilocarpine to lower intraocular pressure by increasing aqueous humor...