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Laser

Laser is commonly used to treat glaucoma, both the open and the closed-angle type.

Selective Laser Trabeculoplasty (SLT):

This laser is used to treat open-angle glaucoma. The trabecular meshwork is the treated area. Once stimulated by the laser, this portion of the eye, which is responsible in part for regulating intraocular pressure, increases its filtration rate, thus causing the pressure to drop. SLT can be used as an initial treatment (instead of drops) or as an adjunctive treatment (in addition to drops). This new generation of laser uses low energy, has a high success rate and leaves no scars. It is also possible to repeat the treatment.

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Nd-YAG Laser (Neodymium-Yttrium Aluminum Garnet Laser):

This type of laser is mainly used to treat narrow-angle glaucoma (with pupillary block mechanism). This condition causes the irido-corneal angle to narrow progressively to the point even of complete and definitive closure. If the closure occurs rapidly (within a few hours or days), what we have is an acute attack of glaucoma; if it spreads over a period of months or years, we are in the presence of closed-angle chronic glaucoma. In both cases, laser treatment is used to relieve the pupillary block.

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For more information, visit The Quebec Glaucoma Foundation website.

Click here to open an informative pamphlet on the laser iridotomy.  

Dr. Sébastien Gagné

Dr. Sébastien Gagné

Dr. Gagné studied medicine at the Université de Sherbrooke from 1997 to 2001 and completed his specialty training in ophthalmology there in 2006.

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