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Related Concept Videos

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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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, 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: Mar 10, 2026

Doppler Optical Coherence Tomography of Retinal Circulation
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Optical Coherence Tomography in Glaucoma.

P Sathyan1, Shilpa Shilpa1, Anitha Anitha1

  • 1Glaucoma Services, Aravind Eye Hospital, Coimbatore, Tamil Nadu, India.

Journal of Current Glaucoma Practice
|December 20, 2016
PubMed
Summary
This summary is machine-generated.

Early detection of optic nerve head (ONH) and retinal nerve fiber layer (RNFL) defects is crucial for glaucoma management. Optical coherence tomography (OCT) aids in identifying these early signs before visual field loss occurs.

Keywords:
AS-OCTGlaucoma diagnosis.RNFL OCT

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Area of Science:

  • Ophthalmology
  • Medical Imaging

Background:

  • The optic nerve head (ONH) and retinal nerve fiber layer (RNFL) are primary sites of glaucomatous damage.
  • RNFL defects often precede visual field defects by approximately 6 years, highlighting the need for early detection.

Approach:

  • This review critically analyzes the applications of anterior and posterior segment Optical Coherence Tomography (OCT) in glaucoma management.
  • Optical coherence tomography utilizes low-coherence interferometry to generate cross-sectional images of ocular tissues.

Key Points:

  • Accurate early detection and monitoring of ONH and RNFL defects are paramount for effective glaucoma management.
  • OCT provides detailed imaging for assessing structural changes associated with glaucoma.
  • The review covers both anterior and posterior segment OCT applications.

Conclusions:

  • Optical coherence tomography is a valuable tool for the early detection and monitoring of glaucoma.
  • Understanding OCT applications in both anterior and posterior segments is essential for comprehensive glaucoma care.