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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...
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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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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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Modeling Cataract Surgery in Mice
05:19

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Published on: December 1, 2023

Cataract surgery after pars plana vitrectomy.

Mohamed Abou Shousha1, Sonia H Yoo

  • 1Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, Florida 33136, USA.

Current Opinion in Ophthalmology
|October 27, 2009
PubMed
Summary
This summary is machine-generated.

Cataract surgery after pars plana vitrectomy presents unique challenges. Advances improve outcomes, but risks like posterior capsular opacification and retinal detachment persist, requiring careful patient selection and management.

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Area of Science:

  • Ophthalmology
  • Retina Surgery
  • Cataract Surgery

Background:

  • Pars plana vitrectomy (PPV) alters ocular anatomy, complicating subsequent cataract surgery.
  • Vitreoretinal diseases often necessitate PPV before cataract development.

Purpose of the Study:

  • To review recent studies and advances in cataract surgery for patients with prior pars plana vitrectomy.
  • To discuss the implications of these advances for patient care and surgical outcomes.

Main Methods:

  • Literature review of recent studies and clinical advancements.
  • Analysis of surgical techniques, biometry, intraocular lens options, and complication rates.

Main Results:

  • Optical biometry is superior to ultrasound biometry in vitrectomized eyes, though less accurate than in non-vitrectomized eyes.
  • Blue light-filter IOLs are safe and may offer macular protection; presbyopia-correcting IOLs are generally not recommended currently.
  • Combined cataract surgery with intravitreal injections is beneficial for patients with macular edema.
  • Incidences of posterior capsular opacification and retinal detachment remain significant.

Conclusions:

  • Understanding ocular changes post-PPV is crucial for managing cataract surgery challenges.
  • Despite advancements, complication rates remain relatively high, necessitating careful surgical planning and execution.