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Related Concept Videos

Angle Closure Glaucoma: Treatment01:28

Angle Closure Glaucoma: Treatment

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...
Open Angle Glaucoma: Treatment01:27

Open Angle Glaucoma: Treatment

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...
Glaucoma: Overview01:25

Glaucoma: Overview

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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Related Experiment Video

Updated: May 8, 2026

Correction of Presbyopia by Monocular Bi-Aspheric Ablation Profile
05:46

Correction of Presbyopia by Monocular Bi-Aspheric Ablation Profile

Published on: September 20, 2024

Laser refractive surgery in glaucoma patients.

Essam Osman1

  • 1Department of Ophthalmology, King Abdulaziz University Hospital (KAUH), Riyadh, Saudi Arabia.

Saudi Journal of Ophthalmology : Official Journal of the Saudi Ophthalmological Society
|August 21, 2013
PubMed
Summary

Glaucoma patients can consider laser eye surgery like LASIK, but it carries risks such as increased intraocular pressure. Alternative procedures like PRK and LASEK may be safer options for those with glaucoma.

Keywords:
Corneal thicknessGlaucomaLASIKLaser refractive surgery

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Ultrasound Cyclo Plasty in Eyes with Glaucoma
05:05

Ultrasound Cyclo Plasty in Eyes with Glaucoma

Published on: January 26, 2018

Area of Science:

  • Ophthalmology
  • Ophthalmic Surgery
  • Glaucoma Management

Background:

  • Glaucoma is a leading cause of irreversible blindness, characterized by optic nerve damage and visual field loss.
  • Laser-Assisted in situ Keratomileusis (LASIK) is a popular refractive surgery, but poses risks for glaucoma patients.
  • Steroid use post-LASIK can elevate intraocular pressure, particularly in susceptible individuals.

Purpose of the Study:

  • To evaluate the safety and considerations of LASIK surgery for patients with glaucoma.
  • To discuss potential risks associated with LASIK in glaucoma patients, including intraocular pressure fluctuations and steroid response.
  • To explore alternative refractive surgery options for individuals with glaucoma.

Main Methods:

  • Review of current literature on LASIK outcomes in glaucoma patients.
  • Analysis of the physiological effects of LASIK on intraocular pressure.
  • Comparison of risks and benefits between LASIK, PRK, and LASEK for glaucoma management.

Main Results:

  • LASIK is a relative, not absolute, contraindication for glaucoma patients due to potential IOP spikes.
  • Post-operative steroid use increases IOP, posing a higher risk for glaucoma patients.
  • Photorefractive keratectomy (PRK) and laser epithelial keratomileusis (LASEK) present viable alternatives.

Conclusions:

  • Glaucoma patients considering refractive surgery should consult specialists experienced with their condition.
  • Careful pre-operative assessment and consideration of alternative procedures are crucial for glaucoma patients seeking vision correction.
  • Documenting pre-operative optic nerve status is recommended for all patients undergoing refractive surgery.