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Related Concept Videos

Angle Closure Glaucoma: Treatment01:28

Angle 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...
Glaucoma: Overview01:25

Glaucoma: 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...
Open Angle Glaucoma: Treatment01:27

Open Angle Glaucoma: Treatment

In open-angle glaucoma, the iridocorneal angle remains open, but the trabecular meshwork becomes stiff, slowing down the outflow of aqueous humor. This causes a buildup of aqueous humor in the anterior chamber, leading to a sudden increase in intraocular pressure. The treatment for open-angle glaucoma focuses on reducing the elevated intraocular pressure by either decreasing the secretion of aqueous humor or increasing its outflow.
Drugs such as carbonic anhydrase inhibitors, α2- and...

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Related Experiment Video

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Modeling Cataract Surgery in Mice
05:19

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Published on: December 1, 2023

Sub-Tenon's block complicated by subconjunctival cilia.

Sher A Aslam1, Hari Jayaram, Naser Ali

  • 1Western Eye Hospital, London, United Kingdom.

Journal of Cataract and Refractive Surgery
|July 31, 2007
PubMed
Summary

Symptomatic eyelash entrapment in the subconjunctival space can occur after a sub-Tenon's block. Vigilance is crucial for patients experiencing persistent foreign-body sensations post-anesthesia.

Area of Science:

  • Ophthalmology
  • Surgical Anesthesia

Background:

  • Sub-Tenon's block is a common anesthesia technique for ophthalmic procedures.
  • Eyelash foreign body sensation is a frequent post-operative complaint.

Observation:

  • An unusual case of symptomatic eyelash entrapment within the subconjunctival space is presented.
  • The entrapment occurred following a standard sub-Tenon's block procedure.

Findings:

  • Eyelash migration into the subconjunctival space can cause persistent foreign-body sensation.
  • This complication, though rare, highlights potential risks associated with sub-Tenon's blocks.

Implications:

  • Clinicians should maintain a high index of suspicion for unusual complications after sub-Tenon's blocks.

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  • Prompt diagnosis and management are essential for patients with persistent foreign-body sensation post-procedure.