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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

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.
Drugs such as carbonic anhydrase inhibitors, α2- and...
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Updated: Mar 3, 2026

Ultrasound Cyclo Plasty in Eyes with Glaucoma
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Glaucoma Drainage Implant Surgery.

Ahmad A Aref, Steven J Gedde, Donald L Budenz

    Developments in Ophthalmology
    |April 27, 2017
    PubMed
    Summary
    This summary is machine-generated.

    Glaucoma drainage implant (GDI) surgery offers an effective treatment for refractory glaucomas. Clinical trials show GDIs are comparable to trabeculectomy, with potential complications manageable through careful surgical technique.

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    Area of Science:

    • Ophthalmology
    • Surgical Innovation

    Background:

    • Refractory glaucomas pose significant treatment challenges.
    • Glaucoma drainage implants (GDIs) have emerged as a key surgical option.
    • Trabeculectomy is a standard surgical comparison for GDIs.

    Purpose of the Study:

    • To compare the efficacy and safety of Glaucoma Drainage Implant (GDI) surgery versus trabeculectomy.
    • To evaluate long-term outcomes of different GDI types.

    Main Methods:

    • Prospective, randomized clinical trials were conducted.
    • Two distinct Glaucoma Drainage Implant (GDI) types were compared.
    • Follow-up extended to 5 years, assessing safety and efficacy.

    Main Results:

    • Glaucoma drainage implant surgery demonstrates comparable efficacy to trabeculectomy.
    • Various implant designs and placement techniques exist.
    • Potential complications include hypotony, motility issues, and tube erosion.

    Conclusions:

    • Glaucoma drainage implants are a viable surgical alternative for refractory glaucomas.
    • Careful patient selection and surgical technique are crucial for optimal outcomes.
    • Ongoing research continues to refine GDI procedures and materials.