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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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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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Related Experiment Video

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Author Spotlight: Anterior HR-OCT as a Non-Invasive Tool for Characterizing Ocular Surface Squamous Neoplasia
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Review of choroidal osteomas.

Ramzi M Alameddine1, Ahmad M Mansour1, Eman Kahtani2

  • 1Department of Ophthalmology, American University of Beirut, Beirut, Lebanon.

Middle East African Journal of Ophthalmology
|August 8, 2014
PubMed
Summary
This summary is machine-generated.

Choroidal osteomas, rare benign tumors, can cause vision loss through retinal issues. Intravitreal vascular endothelial growth factor antagonists show promise in treating associated serous retinal detachment and choroidal neovascularization.

Keywords:
Argon LaserChoroidal OsteomaIntravitreal BevacizumabIntravitreal RanibizumabPhotodynamic Therapy

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Area of Science:

  • Ophthalmology
  • Oncology

Background:

  • Choroidal osteomas are rare benign ossifying tumors.
  • They present as yellow-white choroidal masses with distinct borders.
  • Associated vision loss can occur due to RPE atrophy, serous detachment, or choroidal neovascularization.

Purpose of the Study:

  • To summarize the characteristics of choroidal osteomas.
  • To outline the mechanisms of vision loss.
  • To highlight recent therapeutic advancements.

Main Methods:

  • Review of existing literature on choroidal osteomas.
  • Analysis of clinical presentation and visual outcomes.
  • Evaluation of treatment efficacy for associated complications.

Main Results:

  • Choroidal osteomas exhibit specific ophthalmoscopic features.
  • Visual impairment stems from retinal pigment epithelium (RPE) compromise and neovascularization.
  • Intravitreal vascular endothelial growth factor (VEGF) antagonists improve visual acuity in cases of serous retinal detachment.

Conclusions:

  • Choroidal osteomas require careful monitoring due to potential vision loss.
  • Management strategies should address RPE decompensation and choroidal neovascularization.
  • VEGF antagonists represent a promising treatment for associated exudative complications.