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Related Concept Videos

Open Angle Glaucoma: Treatment01:27

Open Angle Glaucoma: Treatment

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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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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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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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At the molecular level, visual signals trigger transformations in photopigment molecules, resulting in changes in the photoreceptor cell's membrane potential. The photon's energy level is denoted by its wavelength, with each specific wavelength of visible light associated with a distinct color. The spectral range of visible light, classified as electromagnetic radiation, spans from 380 to 720 nm. Electromagnetic radiation wavelengths exceeding 720 nm fall under the infrared category,...
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Related Experiment Video

Updated: Dec 27, 2025

Laser Capture Microdissection of Highly Pure Trabecular Meshwork from Mouse Eyes for Gene Expression Analysis
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[Clinical practice guidelines for single gene glaucoma disorder].

Writing Group For Practice Guidelines For Diagnosis And Treatment Of Genetic Diseases Medical Genetics Branch Of Chinese Medical Association1, Zhenglin Yang, Jiyun Yang

  • 1Medical College of University of Electronic Science and Technology, Affiliated Hospital of University of Electronic Science and Technology, Key Laboratory of Human Disease Gene Research, Sichuan Provincial People's Hospital, Chengdu 610072, China. zliny@yahoo.com.

Zhonghua Yi Xue Yi Chuan Xue Za Zhi = Zhonghua Yixue Yichuanxue Zazhi = Chinese Journal of Medical Genetics
|March 5, 2020
PubMed
Summary

Genetic factors are crucial in glaucoma. This guideline focuses on single gene mutations in primary congenital glaucoma (PCG) and primary open-angle glaucoma (POAG), covering diagnosis, counseling, and treatment.

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Area of Science:

  • Ophthalmology
  • Genetics
  • Molecular Biology

Background:

  • Glaucoma involves progressive optic nerve damage and vision loss.
  • Genetic factors significantly contribute to glaucoma development.
  • Retinal ganglion cell and axonal degeneration are key pathological features.

Purpose of the Study:

  • To summarize pathogenic genes for glaucoma.
  • To guide molecular diagnosis and genetic counseling for PCG and POAG.
  • To inform treatment strategies for single gene mutation-related glaucoma.

Main Methods:

  • Literature review and synthesis of current research on glaucoma genetics.
  • Focus on single gene mutations causing primary congenital glaucoma (PCG) and primary open-angle glaucoma (POAG).
  • Analysis of diagnostic criteria and genetic consultation protocols.

Main Results:

  • Identification of key pathogenic genes implicated in PCG and POAG.
  • Summary of diagnostic approaches for genetically defined glaucoma subtypes.
  • Outline of genetic counseling principles for affected families.

Conclusions:

  • Single gene mutations are critical in specific glaucoma types.
  • Standardized molecular diagnosis and genetic counseling are essential.
  • This guideline aims to improve management of hereditary glaucoma.