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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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Sleep Apnea01:21

Sleep Apnea

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Sleep apnea is a condition where breathing stops intermittently during sleep, often leading to significant health issues. Each episode can last from 10 to 20 seconds or more and is frequently accompanied by a brief arousal from sleep. This disturbance, largely unnoticed by the individual, can lead to severe daytime fatigue. Commonly, individuals seek help after being informed by their partners about loud snoring and noticeable breathing pauses during sleep.
The condition is more prevalent among...
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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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Angle Closure Glaucoma: Treatment01:28

Angle Closure Glaucoma: Treatment

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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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Photoreceptors and Visual Pathways01:22

Photoreceptors and Visual Pathways

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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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Other Pulmonary Disorders01:17

Other Pulmonary Disorders

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Respiratory disorders encompass a range of conditions with varying levels of severity. Asthma, marked by chronic airway inflammation and hypersensitivity, is one such condition. It can lead to airway obstruction due to factors like bronchial spasms, mucosal edema, increased mucus secretion, or epithelial damage. Asthma triggers are diverse, ranging from allergens to emotional upset, and treatment focuses on both immediate relief through bronchodilators and long-term inflammation suppression.
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Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

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Same author

[Prevalence of glaucoma in obstructive sleep apnea].

Der Ophthalmologe : Zeitschrift der Deutschen Ophthalmologischen Gesellschaft·2015
Same author

Is the PASCAL-Tonometer suitable for measuring intraocular pressure in clinical routine? Long- and short-term reproducibility of dynamic contour tonometry.

European journal of ophthalmology·2008
Same author

[Excimer laser trabeculotomy: minimally invasive glaucoma surgery].

Der Ophthalmologe : Zeitschrift der Deutschen Ophthalmologischen Gesellschaft·2007
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[Steroid glaucoma after laser in situ keratomileusis].

Klinische Monatsblatter fur Augenheilkunde·2007
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[Primary open-angle glaucoma and systemic diseases].

Der Ophthalmologe : Zeitschrift der Deutschen Ophthalmologischen Gesellschaft·2007
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[High tech in the diagnosis of glaucoma].

Klinische Monatsblatter fur Augenheilkunde·2006
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Related Experiment Video

Updated: May 3, 2026

Glaucoma-inducing Procedure in an In Vivo Rat Model and Whole-mount Retina Preparation
08:30

Glaucoma-inducing Procedure in an In Vivo Rat Model and Whole-mount Retina Preparation

Published on: March 12, 2016

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[Sleep apnoea and glaucoma].

M Pache1

  • 1Augen Praxisklinik Lübeck, Schwerpunkt Glaukom und operative Augenheilkunde.

Klinische Monatsblatter Fur Augenheilkunde
|February 18, 2014
PubMed
Summary
This summary is machine-generated.

Normal-tension glaucoma may be linked to sleep apnoea syndrome (SAS). Screening for SAS in glaucoma patients is recommended to prevent optic nerve damage from impaired blood flow during sleep apnoeas.

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Last Updated: May 3, 2026

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

  • Ophthalmology
  • Neurology
  • Sleep Medicine

Context:

  • Growing evidence suggests a link between normal-tension glaucoma and sleep apnoea syndrome (SAS).
  • Optic nerve head (ONH) health is crucial for vision, and its compromised perfusion is implicated in glaucoma pathogenesis.
  • Sleep apnoea is characterized by recurrent episodes of airway obstruction during sleep, leading to intermittent hypoxia and hypercapnia.

Purpose:

  • To explore the hypothesised association between normal-tension glaucoma and SAS.
  • To investigate the potential mechanism of glaucomatous damage related to impaired ONH perfusion during sleep apnoeas.
  • To advocate for screening susceptible glaucoma patients for SAS.

Summary:

  • A potential association exists between normal-tension glaucoma and SAS.
  • Glaucomatous damage may arise from reduced blood flow to the optic nerve head due to prolonged, repetitive apnoeic events during sleep.
  • Screening for SAS in patients with normal-tension glaucoma is advised.

Impact:

  • Highlights a potential modifiable risk factor for normal-tension glaucoma.
  • Suggests a novel pathway for optic nerve damage in glaucoma patients with SAS.
  • Emphasizes the importance of a multidisciplinary approach in managing glaucoma, integrating sleep medicine insights.