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Related Concept Videos

Glaucoma: Overview01:25

Glaucoma: Overview

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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: Treatment01:28

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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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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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Stereoacuity Improvement using Random-Dot Video Games
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[Stereoacuity in Glaucoma Patients].

Tomoko Yoshikawa, Yoshitaka Nakao, Yoshiaki Kiuchi

    Nippon Ganka Gakkai Zasshi
    |May 24, 2016
    PubMed
    Summary
    This summary is machine-generated.

    Glaucoma significantly impairs both near and distance stereoacuity. However, preperimetric glaucoma patients did not show significant stereoacuity deficits compared to controls.

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    Area of Science:

    • Ophthalmology
    • Vision Science

    Context:

    • Glaucoma is a leading cause of irreversible blindness.
    • Stereoacuity, the ability to perceive depth, is crucial for daily visual tasks.

    Purpose:

    • To investigate the impact of glaucoma and preperimetric glaucoma on stereoacuity.
    • To compare stereoacuity in glaucoma patients, preperimetric glaucoma patients, and healthy controls.

    Summary:

    • Glaucoma patients exhibited significantly reduced near and distance stereoacuity compared to controls.
    • No significant stereoacuity differences were found between preperimetric glaucoma patients and controls.
    • A trend of decreased stereoacuity was associated with increasing age and central visual field defects.

    Impact:

    • Stereoacuity deficits are a significant consequence of glaucoma.
    • Central visual field damage, within 5 degrees, may particularly affect near stereoacuity in glaucoma.
    • Findings highlight the importance of assessing stereoacuity in glaucoma management.