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Related Concept Videos

Burn Injuries01:22

Burn Injuries

Burn injuries occur when the skin and underlying tissues are damaged due to exposure to heat, electricity, chemicals, radiation, or friction. They can vary in severity, from minor superficial burns to severe deep burns that can be life-threatening.
The damage results in the death of skin cells, which can lead to a massive loss of fluid. Dehydration, electrolyte imbalance, and renal and circulatory failure follow, which can be fatal. Burn patients are treated with intravenous fluids to offset...
Accessory Structures of the Eye01:17

Accessory Structures of the Eye

Optical perception, or vision, is an extraordinary sense dependent on converting light signals received via the ocular organs. These organs, known as eyes, are securely positioned within the bony cavities of the skull, called orbits. The orbits serve a dual purpose: a protective shield for the ocular globes and a stable attachment point for the soft ocular tissues. The eye's external protective mechanisms include the eyelids, which are edged with lashes that act as a barrier against foreign...
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...
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...
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...
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...

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Related Experiment Video

Updated: Jun 28, 2026

Full-Circle Cauterization of Limbal Vascular Plexus for Surgically Induced Glaucoma in Rodents
10:10

Full-Circle Cauterization of Limbal Vascular Plexus for Surgically Induced Glaucoma in Rodents

Published on: February 15, 2022

[Ocular burns].

H Merle1, M Gérard, N Schrage

  • 1Service d'Ophtalmologie, Centre Hospitalier Universitaire de Fort de France, Hôpital Pierre Zobda-Quitman, Fort de France, Martinique - France, French West Indies. harold.merle@chu-fortdefrance.fr

Journal Francais D'Ophtalmologie
|October 31, 2008
PubMed
Summary
This summary is machine-generated.

Ocular burns, often affecting young individuals, can cause severe eye damage, particularly chemical burns. Advances in understanding corneal epithelium physiology and stem cell repair have improved outcomes for serious eye burns.

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Area of Science:

  • Ophthalmology
  • Trauma Surgery
  • Regenerative Medicine

Context:

  • Ocular burns represent a significant portion (7.7%-18%) of ocular trauma, frequently impacting young populations.
  • Injuries result from domestic, occupational accidents, or assaults, with chemical burns from acids/bases causing the most severe damage.
  • Severe burns can lead to limbal stem cell destruction, manifesting as recurrent ulcers, stromal opacities, neovascularization, and potential perforation.

Purpose:

  • To review the classification systems for ocular burns, including the Roper-Hall modification and newer systems by Dua and Wagoner.
  • To discuss the diagnostic challenges and prognostic indicators in ocular burn management.
  • To highlight advancements in understanding corneal epithelium physiology and surgical techniques for limbal stem cell restoration.

Summary:

  • Initial clinical examination is crucial for classifying ocular burns using systems like Roper-Hall, Dua, and Wagoner, which assess stromal opacity, limbal ischemia, and stem cell deficiency.
  • The prognosis for severe ocular burns has improved due to enhanced understanding of corneal epithelium physiology.
  • Surgical interventions targeting limbal stem cell regeneration have significantly altered outcomes for severe corneal burns.

Impact:

  • Improved understanding of corneal physiology and stem cell biology has led to better therapeutic strategies for ocular burns.
  • Surgical restoration of limbal stem cells offers improved prognosis for severe corneal burn victims.
  • Emphasis on preventative measures, especially in industrial settings, is essential to reduce the incidence of ocular burns.