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Related Concept Videos

Open Angle Glaucoma: Treatment01:27

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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.
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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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Related Experiment Video

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Use of Rabbit Eyes in Pharmacokinetic Studies of Intraocular Drugs
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UVEITIS TREATED WITH DEXAMETHASONE IMPLANT.

Thibaud Mathis1,2, Alessio Cerquaglia3,4, Michel Weber5

  • 1Service d'Ophtalmologie, Hôpital Universitaire de la Croix-Rousse, Hospices Civils de Lyon, Université Lyon 1, Lyon, France.

Retina (Philadelphia, Pa.)
|July 4, 2020
PubMed
Summary
This summary is machine-generated.

The intravitreal dexamethasone implant effectively treats noninfectious uveitis, improving vision and reducing inflammation. While side effects like ocular hypertension and cataracts can occur, they are manageable.

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Area of Science:

  • Ophthalmology
  • Retinal Diseases
  • Inflammatory Eye Conditions

Background:

  • Noninfectious uveitis poses a significant threat to vision, often requiring long-term management.
  • Intravitreal corticosteroids are a key therapeutic option for inflammatory eye conditions.

Purpose of the Study:

  • To assess the real-world effectiveness and safety of intravitreal dexamethasone implants in patients with noninfectious uveitis.
  • To evaluate visual acuity, macular thickness, and vitreous haze following treatment.

Main Methods:

  • Retrospective observational multicentric study involving 152 eyes and 358 dexamethasone implant injections.
  • Key outcomes included changes in best-corrected visual acuity (BCVA), central macular thickness (CMT), and vitreous haze scores.
  • Data collected on indications for treatment, follow-up duration, and adverse events.

Main Results:

  • Significant improvement in BCVA was observed, with a mean gain of +12.1 letters.
  • Anatomical response in eyes with macular edema was 59.7%, and vitreous haze resolution was achieved in 81.4%.
  • Ocular hypertension occurred in 28.3% of patients and cataract surgery was performed in 40.2% of phakic eyes, both manageable complications.

Conclusions:

  • The dexamethasone implant demonstrates significant efficacy in treating noninfectious uveitis.
  • The safety profile is favorable, with manageable adverse events such as ocular hypertension and cataracts.
  • This study supports the use of intravitreal dexamethasone implants as a valuable treatment option for uveitis.