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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, 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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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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Related Experiment Video

Updated: Feb 22, 2026

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Glaucoma after corneal replacement.

Monika Baltaziak1, Hall F Chew2, Dominik W Podbielski3

  • 1Department of Ophthalmology and Vision Sciences, University of Toronto, Toronto, Ontario, Canada; Prism Eye Institute, Mississauga, Ontario, Canada.

Survey of Ophthalmology
|September 20, 2017
PubMed
Summary
This summary is machine-generated.

Glaucoma is a common complication following corneal transplantation. Newer surgical techniques and implants are changing glaucoma risks and treatments after these procedures.

Keywords:
Boston keratoprosthesisDescemet membrane endothelial keratoplastyDescemet stripping endothelial keratoplastycorneacorneal transplantationdeep anterior lamellar keratoplastyglaucomakeratoprosthesispenetrating keratoplastyposterior lamellar keratoplasty

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Area of Science:

  • Ophthalmology
  • Corneal Surgery
  • Glaucoma Management

Background:

  • Glaucoma is a significant complication after corneal transplantation.
  • Traditional penetrating keratoplasty is increasingly being replaced by lamellar keratoplasty.
  • Keratoprosthesis implants are emerging for high-risk cases.

Purpose of the Study:

  • To review the evolving landscape of corneal transplantation.
  • To discuss the impact of new procedures on glaucoma development.
  • To outline current and future glaucoma treatment strategies post-corneal transplant.

Main Methods:

  • Literature review of corneal transplantation techniques.
  • Analysis of glaucoma incidence across different procedures.
  • Summary of medical, laser, and surgical glaucoma therapies.

Main Results:

  • Lamellar keratoplasty and keratoprosthesis show different glaucoma profiles compared to penetrating keratoplasty.
  • Pathogenesis of glaucoma may vary with the type of corneal procedure.
  • Treatment approaches for post-transplant glaucoma are diverse.

Conclusions:

  • The shift in corneal transplantation techniques necessitates a re-evaluation of glaucoma management.
  • Understanding procedure-specific glaucoma risks is crucial for patient care.
  • Tailored treatment strategies are essential for managing glaucoma after corneal surgery.