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Related Concept Videos

Glaucoma: Overview01:25

Glaucoma: Overview

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...
Microbiome of the Eye01:22

Microbiome of the Eye

The human eye has a specialized microbiota that reflects its unique anatomical and immunological environment. This low-biomass microbial community predominantly colonizes the conjunctiva and eyelid margins, playing a vital role in ocular surface homeostasis and defense. Despite its proximity to the richly colonized facial skin, the ocular surface maintains a distinct microbial profile due to continuous mechanical and biochemical defense mechanisms.The conjunctival surface hosts fewer microbial...
Photoreceptors and Visual Pathways01:22

Photoreceptors and Visual Pathways

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, whereas...
Angle Closure Glaucoma: Treatment01:28

Angle Closure Glaucoma: Treatment

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...
Nephrotic Syndrome II : Assessment and Medical Management01:26

Nephrotic Syndrome II : Assessment and Medical Management

IntroductionNephrotic syndrome is a kidney disorder marked by excessive protein loss in the urine, leading to various systemic complications. This condition often results from damage to the glomeruli—the kidney's filtering units—causing proteinuria, low blood protein levels, and fluid retention. Understanding the assessment, diagnosis, and management of nephrotic syndrome is essential for effective treatment and prevention of further kidney damage.AssessmentPatient History: Document any history...
Open Angle Glaucoma: Treatment01:27

Open Angle Glaucoma: Treatment

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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Related Experiment Video

Updated: Jun 22, 2026

Nasolacrimal Lavage as a Treatment for Ocular Surface Toxic Soup Syndrome
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Nasolacrimal Lavage as a Treatment for Ocular Surface Toxic Soup Syndrome

Published on: April 25, 2025

[Keratoconjunctivitis sicca--an entity underassessed, underdiagnosed and undertreated].

Vasile Potop

    Oftalmologia (Bucharest, Romania : 1990)
    |July 3, 2009
    PubMed
    Summary

    Keratoconjunctivitis sicca, a common yet complex eye condition, presents diagnostic and treatment challenges. Its varied symptoms are frequently underestimated, leading to underdiagnosis and undertreatment.

    Area of Science:

    • Ophthalmology
    • Ocular Surface Disease

    Context:

    • Keratoconjunctivitis sicca is a prevalent and intricate ocular surface disease.
    • The condition poses significant diagnostic and therapeutic challenges.
    • Its diverse clinical manifestations often lead to it being overlooked.

    Purpose:

    • To highlight the diagnostic and treatment complexities of keratoconjunctivitis sicca.
    • To underscore the issue of underdiagnosis and undertreatment associated with this condition.

    Summary:

    • Keratoconjunctivitis sicca is characterized by its frequency and complexity.
    • The varied clinical presentation complicates accurate diagnosis and effective treatment.
    • This disease is often undervalued, leading to delayed or inadequate medical attention.

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    Published on: August 9, 2024

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    Anterior High-Resolution Optical Coherence Tomography in the Diagnosis and Therapeutic Monitoring of Ocular Surface Squamous Neoplasia
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    Published on: August 9, 2024

    Impact:

    • Improved awareness of keratoconjunctivitis sicca's complexity.
    • Potential for earlier and more accurate diagnosis.
    • Enhanced treatment strategies for patients suffering from dry eye disease.