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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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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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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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Related Experiment Video

Updated: Nov 2, 2025

Full-Circle Cauterization of Limbal Vascular Plexus for Surgically Induced Glaucoma in Rodents
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Ocular surface temperature differences in glaucoma.

Ari Leshno1,2,3, Ori Stern1,2, Yaniv Barkana1,2

  • 1The Sam Rothberg Glaucoma Center, Goldschleger Eye Institute, Sheba Medical Center, Tel Hashomer, Israel.

European Journal of Ophthalmology
|June 9, 2021
PubMed
Summary
This summary is machine-generated.

Glaucoma patients exhibit elevated ocular surface temperature (OST) compared to healthy individuals, suggesting inflammation plays a role in optic nerve damage. Thermographic imaging can detect these temperature differences, aiding glaucoma research.

Keywords:
Glaucomacornea/external diseasediagnostic techniquesdiseases of the ocular surfaceexamination techniquesocular blood flow

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Area of Science:

  • Ophthalmology
  • Immunology
  • Medical Imaging

Background:

  • Neuroinflammation and immune responses are implicated in optic nerve damage in glaucoma.
  • Thermographic imaging can detect temperature changes associated with inflammation.

Purpose of the Study:

  • To investigate the ocular surface temperature (OST) profile in glaucomatous eyes.
  • To understand the role of inflammation in glaucoma pathophysiology.

Main Methods:

  • Recruited patients with primary open angle glaucoma (POAG) or pseudoexfoliation glaucoma (PXFG) and healthy controls.
  • Used a Therm-App thermal imaging camera for OST acquisition.
  • Calculated mean temperatures of the medial cantus, lateral cantus, and cornea.

Main Results:

  • Glaucomatous eyes showed significantly higher OST than control eyes (mean difference 0.9°C, p < 0.005).
  • This difference remained significant after adjusting for age, sex, intraocular pressure, and environmental temperatures.
  • Lens status and IOP-lowering medication did not significantly affect OST.

Conclusions:

  • Elevated OST in glaucoma supports the link between inflammation and disease pathophysiology.
  • Further longitudinal studies are needed to assess the prognostic value of thermography in glaucoma.