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Glaucoma: Overview01:25

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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

Updated: Feb 22, 2026

Implantation and Evaluation of Melanoma in the Murine Choroid via Optical Coherence Tomography
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[Choroidal Melanoma].

Inês Coutinho1, Tânia Teixeira2, Paulo César Simões3

  • 1Serviço de Oftalmologia. Hospital Fernando Fonseca. Amadora. Portugal.

Acta Medica Portuguesa
|September 20, 2017
PubMed
Summary
This summary is machine-generated.

Choroidal melanoma, a common adult eye cancer, lacks superior survival treatments. Conservative options like brachytherapy are increasingly used, offering new therapeutic avenues for this rare malignancy.

Keywords:
Choroid NeoplasmsMelanoma

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Area of Science:

  • Ophthalmology
  • Oncology

Background:

  • Choroidal melanoma is the most frequent primary malignant tumor affecting the adult eye.
  • Current treatments do not offer significant survival advantages.
  • There is a growing trend towards conservative management strategies.

Purpose of the Study:

  • To provide a comprehensive review of choroidal melanoma.
  • To discuss clinical characteristics, risk factors, and diagnostic methods.
  • To outline available therapeutic options, including recent advancements.

Main Methods:

  • Literature review of clinical characteristics, risk factors, diagnosis, and treatment of choroidal melanoma.
  • Focus on conservative treatments, specifically brachytherapy, as implemented in Portugal since 2013.

Main Results:

  • Choroidal melanoma presents diverse clinical features and risk factors.
  • Diagnosis relies on a combination of clinical examination and imaging techniques.
  • Brachytherapy represents a viable conservative treatment option.

Conclusions:

  • No single treatment modality for choroidal melanoma has demonstrated superior survival benefits.
  • Conservative treatments, such as brachytherapy, are gaining prominence.
  • Further research is needed to optimize management and improve outcomes for choroidal melanoma patients.