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Related Concept Videos

Glaucoma: Overview01:25

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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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Coronary Artery Disease I: Introduction01:30

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Coronary Artery Disease (CAD): An Overview with Scientific InsightsCoronary Artery Disease (CAD), often referred to as C-A-D, is a prevalent blood vessel disorder classified under the broader category of atherosclerosis. Atherosclerosis is a pathological process characterized by the hardening and narrowing of arteries due to the accumulation of atherosclerotic plaques. These plaques are composed of cholesterol, fatty substances, inflammatory cells, calcium, and fibrin, reducing blood flow to...
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As individuals age, their body's physiology evolves, affecting drug pharmacokinetics. The most apparent changes occur in the gastrointestinal tract, where an increase in gastric pH, a delay in gastric emptying, and a reduction in gastrointestinal motility are observed. Remarkably, these changes do not substantially modify the absorption of orally administered drugs, particularly those absorbed via passive diffusion.Transdermal drug delivery emerges as a highly viable method for older adults due...
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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: Mar 24, 2026

Laser Capture Microdissection of Highly Pure Trabecular Meshwork from Mouse Eyes for Gene Expression Analysis
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IMPORTANCE OF DEMOGRAPHIC RISK FACTORS FOR PRIMARY ANGLE CLOSURE.

Alina Mihaela Neacsu

    Romanian Journal of Ophthalmology
    |March 17, 2016
    PubMed
    Summary

    Family history is crucial for identifying glaucoma risk. Genetic screening is vital for families with a history of angle closure glaucoma, as demonstrated by affected twins.

    Area of Science:

    • Ophthalmology
    • Genetics
    • Public Health

    Background:

    • The European Glaucoma Society guidelines emphasize family history in angle closure glaucoma.
    • Genetic predisposition plays a significant role in the development of angle closure glaucoma.

    Observation:

    • A clinical case highlights two twin patients presenting with identical angle closure symptoms.
    • The twins experienced similar ocular conditions despite potentially different environmental or lifestyle factors.

    Findings:

    • The shared genetic background between twins led to the manifestation of angle closure glaucoma.
    • This case underscores the heritability of angle closure glaucoma.

    Implications:

    • Family screening for angle closure glaucoma is essential in high-risk families.

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  • Early detection through genetic screening can prevent vision loss.
  • Further research into the genetic basis of angle closure glaucoma is warranted.