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Open Angle Glaucoma: Treatment01:27

Open Angle Glaucoma: Treatment

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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.
Drugs such as carbonic anhydrase inhibitors, α2- and...
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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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Related Experiment Video

Updated: Jun 17, 2025

Translaminar Autonomous System Model for the Modulation of Intraocular and Intracranial Pressure in Human Donor Posterior Segments
08:55

Translaminar Autonomous System Model for the Modulation of Intraocular and Intracranial Pressure in Human Donor Posterior Segments

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Intraocular pressure modulation with thermal stimuli.

Thiago Carvalho Barros de Oliveira1,2, Juliana de Lucena Martins Ferreira2, Hissa Tavares de Lima3

  • 1Instituto Cearense de Oftalmologia, Fortaleza, CE, Brazil.

Arquivos Brasileiros De Oftalmologia
|August 7, 2024
PubMed
Summary

A hypothermic thermal face mask significantly reduced intraocular pressure in healthy individuals. Conversely, a hyperthermic mask increased intraocular pressure, demonstrating temperature

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Area of Science:

  • Ophthalmology
  • Therapeutic Modalities
  • Physiology

Background:

  • Intraocular pressure (IOP) is a critical factor in ocular health.
  • Modulating IOP is essential for managing conditions like glaucoma.
  • Non-invasive methods for IOP modulation are of significant interest.

Purpose of the Study:

  • To investigate the effect of a thermal face mask on early-stage intraocular pressure.
  • To determine if temperature application via a face mask can alter IOP levels.

Main Methods:

  • A prospective clinical study involving 108 healthy participants.
  • Randomized allocation into three groups: hypothermic, normothermic, and hyperthermic mask application.
  • IOP measurements taken before (T1) and after (T2) a 10-minute mask application.

Main Results:

  • The hypothermic group showed a significant IOP reduction (p<0.001).
  • The hyperthermic group exhibited a significant IOP increase (p<0.001).
  • The normothermic group showed no significant change in IOP (p=0.054).

Conclusions:

  • Thermal application significantly modifies intraocular pressure in a temperature-dependent manner.
  • Thermal face masks offer a controlled and reproducible method for temperature application.
  • Further research is required to explore long-term effects and applicability in pathological conditions.