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Related Concept Videos

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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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: Nov 8, 2025

Three Different Protocols of Corneal Collagen Crosslinking in Keratoconus: Conventional, Accelerated and Iontophoresis
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[Intracorneal ring segments in keratoconus management].

C David1, S Kallel1, L Trinh1

  • 1INSERM-DGOS CIC 1423, CHNO des Quinze-Vingts, IHU ForeSight, 28, rue de Charenton, 75012 Paris, France.

Journal Francais D'Ophtalmologie
|April 25, 2021
PubMed
Summary
This summary is machine-generated.

Intracorneal ring segments (ICRS) offer advanced management for keratoconus, with customizable options and evolving implantation strategies. This review details ICRS use and combined procedures for visual rehabilitation in keratoconic patients.

Keywords:
Anneau intra-cornéenCataractCataracteCorneaCornéeCross linkingCrosslinkingDégénérescence marginale pellucideIntracorneal ring segmentIntraocular lensKeratoconusKératocôneLentille intraoculairePachymetryPachymétriePellucid marginal degenerationPhotokératectomie réfractivePhotorefractive keratectomyTopographieTopography

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Area of Science:

  • Ophthalmology
  • Corneal Surgery
  • Vision Science

Background:

  • Keratoconus management has advanced significantly with Intracorneal Ring Segments (ICRS) technology since the 2000s.
  • ICRS offer customizable parameters (arc length, thickness, diameter) to tailor visual outcomes.
  • Individualized implantation strategies are continuously refined based on patient-specific corneal topography and tomography.

Purpose of the Study:

  • To review current clinical practices for visual rehabilitation in keratoconus patients.
  • To summarize the application of Intracorneal Ring Segments (ICRS) and combined procedures.
  • To provide insights into the effects of ICRS on the keratoconic cornea.

Main Methods:

  • Review of existing literature and clinical practices regarding ICRS implantation.
  • Analysis of various ICRS types and their impact on visual parameters (spherical equivalent, keratometry, asphericity).
  • Examination of combined surgical procedures involving ICRS, corneal collagen cross-linking, and refractive surgery.

Main Results:

  • ICRS technology has evolved, offering diverse options for keratoconus management.
  • Surgical implantation of ICRS is standardized with a low complication rate.
  • Combined procedures are increasingly utilized, necessitating a thorough understanding of ICRS effects.

Conclusions:

  • ICRS are a valuable tool in the modern management of keratoconus.
  • Personalized ICRS implantation strategies enhance visual rehabilitation outcomes.
  • Knowledge of ICRS effects is crucial for successful combined surgical interventions in keratoconus.