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Related Concept Videos

Glaucoma: Overview01:25

Glaucoma: Overview

1.4K
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

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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Interdisciplinary Care: The Health Care Team-I01:21

Interdisciplinary Care: The Health Care Team-I

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An interdisciplinary team includes many healthcare professionals working together and utilizing their skills, knowledge, and expertise to provide holistic and quality patient care.
Physicians
The physician's primary responsibility is to diagnose illness and direct the medical or surgical treatment of the condition. The authority to admit patients to a healthcare agency or institution and practice care within that setting is granted to physicians by the healthcare agency or institution...
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Interdisciplinary Care: The Health Care Team-II01:18

Interdisciplinary Care: The Health Care Team-II

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An interdisciplinary team includes many healthcare professionals working together and utilizing their skills, knowledge, and expertise to provide holistic and quality patient care. Here are a few more healthcare professionals.
Physical Therapist
A physical therapist (PT) aims to restore function or prevent additional impairment in a patient following an injury or disease. Massage, heat, cold, water, sonar waves, exercises, and electrical stimulation are some treatments used by PTs to treat...
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Continuing Care01:25

Continuing Care

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Continuing care describes the variety of health, personal, and social services provided over a prolonged period. The need for continuing care is increasing because people are living longer. Many people do not have families or others to care for them. Continuing care is mainly for patients who are disabled, functionally dependent, or suffering from a terminal disease. It is available within institutional settings or in homes. Examples include nursing centers or facilities, assisted living,...
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Related Experiment Video

Updated: Feb 10, 2026

Doppler Optical Coherence Tomography of Retinal Circulation
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Doppler Optical Coherence Tomography of Retinal Circulation

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Optical Coherence Tomography Angiography in Glaucoma Care.

Sunee Chansangpetch1,2, Shan C Lin1

  • 1a Department of Ophthalmology , University of California San Francisco , San Francisco , CA , USA.

Current Eye Research
|May 15, 2018
PubMed
Summary

Optical coherence tomography angiography (OCTA) offers new insights into glaucoma. This non-invasive imaging technique helps detect glaucoma and monitor its progression by assessing the optic nerve head vasculature.

Keywords:
Glaucomaglaucoma imagingocular perfusionoptical coherence tomographyoptical coherence tomography angiography

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Related Experiment Videos

Last Updated: Feb 10, 2026

Doppler Optical Coherence Tomography of Retinal Circulation
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In vivo Structural Assessments of Ocular Disease in Rodent Models using Optical Coherence Tomography
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Retinal Vascular Reactivity as Assessed by Optical Coherence Tomography Angiography
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Retinal Vascular Reactivity as Assessed by Optical Coherence Tomography Angiography

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Area of Science:

  • Ophthalmology
  • Medical Imaging
  • Vascular Biology

Background:

  • Optical coherence tomography (OCT) advancements enable high-resolution, fast imaging.
  • Optical coherence tomography angiography (OCTA) non-invasively visualizes retinal and optic nerve head vasculature.
  • Ocular perfusion dysfunction is implicated in glaucoma pathogenesis.

Purpose of the Study:

  • Review principal OCTA techniques.
  • Summarize OCTA reproducibility literature.
  • Discuss OCTA applications in glaucoma detection and progression monitoring.
  • Evaluate OCTA's role in assessing the vascular component of glaucoma.

Main Methods:

  • Literature review of pertinent publications on OCTA and glaucoma.
  • Analysis of OCTA development, techniques, and clinical applications.

Main Results:

  • OCTA utilizes variations in OCT signals from moving particles for flow imaging.
  • Techniques include phase-based, intensity-based (SSADA), and complex-based (OMAG) algorithms.
  • OCTA's reliability, resolution, and availability facilitate its use in posterior segment diseases like glaucoma.

Conclusions:

  • OCTA enhances understanding of glaucoma pathogenesis.
  • OCTA may improve glaucoma detection and monitoring capabilities.