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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...
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...
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...

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Related Experiment Videos

Phacotrabeculectomy without mitomycin C in primary angle-closure and open-angle glaucoma.

Harsha Laxmana Rao1, Rajat Maheshwari, Sirisha Senthil

  • 1VST Glaucoma Center, L V Prasad Eye Institute, Banjara Hills, Hyderabad, Andhra Pradesh, India. harsha@lvpei.org

Journal of Glaucoma
|January 7, 2010
PubMed
Summary

Single site phacotrabeculectomy without mitomycin C showed similar survival rates for primary angle-closure glaucoma (PACG) and primary open-angle glaucoma (POAG). However, PACG patients experienced greater intraocular pressure reduction and required fewer medications post-surgery.

Related Experiment Videos

Area of Science:

  • Ophthalmology
  • Glaucoma Surgery
  • Surgical Outcomes

Background:

  • Glaucoma management often involves surgical intervention to lower intraocular pressure (IOP).
  • Single site phacotrabeculectomy is a surgical technique used for glaucoma treatment.
  • Mitomycin C (MMC) is sometimes used during trabeculectomy to enhance success rates.

Purpose of the Study:

  • To compare the surgical outcomes of single site phacotrabeculectomy without MMC in patients with primary angle-closure glaucoma (PACG) and primary open-angle glaucoma (POAG).

Main Methods:

  • Retrospective review of patients with PACG and POAG who underwent single site phacotrabeculectomy without MMC.
  • Minimum follow-up of 12 months.
  • Primary outcome: cumulative success probability (complete and qualified). Secondary outcomes: IOP reduction, medication use, and complication rates.

Main Results:

  • 71 PACG eyes and 72 POAG eyes were analyzed with a mean follow-up of approximately 39-42 months.
  • Complete success rates were 72.1% for PACG and 56.1% for POAG (P=0.06).
  • Greater IOP reduction (P=0.03) and fewer postoperative medications (P=0.03) were observed in the PACG group.

Conclusions:

  • Single site phacotrabeculectomy without MMC demonstrated comparable survival probabilities between PACG and POAG groups.
  • The PACG group achieved significantly greater IOP reduction and required less medication post-surgery.
  • This suggests potential benefits of the procedure in PACG regarding IOP control.