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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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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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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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Updated: Jan 4, 2026

Iris Fixation via External Pentagram Suturing
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Posterior Scleritis.

Ryan A Shields, Ira H Schachar

    Ophthalmic Surgery, Lasers & Imaging Retina
    |November 1, 2019
    PubMed
    Summary
    This summary is machine-generated.

    This case study highlights posterior scleritis, an inflammatory eye condition causing vision loss. Prompt diagnosis and treatment with oral prednisone are crucial for managing this condition.

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    Area of Science:

    • Ophthalmology
    • Inflammatory eye diseases

    Background:

    • Posterior scleritis is an uncommon inflammatory condition affecting the posterior uvea.
    • It can present with varied symptoms, mimicking other ocular pathologies.

    Observation:

    • A 19-year-old female presented with acute vision loss, eye pain, and eyelid swelling.
    • Ocular examination revealed diffuse choroidal thickening, serous retinal detachments, and optic disc leakage.

    Findings:

    • Diagnostic imaging, including ultrasonography, showed characteristic signs like the "T-sign."
    • The patient was diagnosed with posterior scleritis based on clinical and imaging findings.

    Implications:

    • Early recognition and treatment of posterior scleritis are vital to prevent permanent vision impairment.
    • Systemic corticosteroids, such as oral prednisone, are a primary treatment modality.