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Related Concept Videos

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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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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

Updated: Apr 8, 2026

Translaminar Autonomous System Model for the Modulation of Intraocular and Intracranial Pressure in Human Donor Posterior Segments
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Ocular Glymphatic System: Its Modulation and Role in Intraocular Tumors.

Jasmine H Francis1, David H Abramson1

  • 1Department of Surgery (Ophthalmic Oncology Service), Memorial Sloan Kettering Cancer Center, New York, New York, United States.

Investigative Ophthalmology & Visual Science
|April 7, 2026
PubMed
Summary

The brain

Area of Science:

  • Neuroscience
  • Ophthalmology

Background:

  • The glymphatic system clears waste from the central nervous system (CNS), and its dysfunction is linked to neurodegenerative diseases.
  • A similar system, the ocular glymphatic system, is proposed to exist in the eye.

Purpose of the Study:

  • To review the literature on the CNS and ocular glymphatic systems.
  • To explore the role of glymphatic dysfunction in neurodegenerative and ophthalmic diseases like glaucoma and age-related macular degeneration (AMD).
  • To investigate the glymphatic system's role in intraocular tumors and potential therapeutic strategies.

Main Methods:

  • Literature review of studies on the central nervous system (CNS) and ocular glymphatic systems.
  • Analysis of the association between glymphatic dysfunction and diseases such as neurodegeneration, glaucoma, and AMD.

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  • Exploration of the glymphatic system's role in intraocular tumors and potential therapeutic interventions.

    • Main Results:

    • Glymphatic system dysfunction may be a unifying factor in neurodegeneration, glaucoma, and AMD.
    • Exercise and sleep show protective effects, linking to these diseases.
    • The glymphatic system may serve as a pathway for communication between intraocular tumors and the brain.

    Conclusions:

    • Glymphatic system dysfunction is implicated in various neurological and ophthalmic diseases.
    • Therapies enhancing CNS glymphatic flow could potentially benefit ocular conditions.
    • Further research is needed to understand the glymphatic system's role in intraocular tumors and its therapeutic potential.