Cataract Surgery

What is a cataract?

A cataract is an opacification of the lens, a normally clear and transparent medium of the eye. Some compare it to a new skin in the eye, but in reality it is a tissue change in the nucleus of the lens. When the cataract appears, the lens becomes opaque like a frosted window and the light can not be properly transmitted to the retina, producing an unclear image.
 
Symptoms

➢    Blurred or cloudy vision
➢    Colours that are faded or less bright
➢    Poor perception of contrasts and colors
➢    Decreased visual acuity, need to change prescription glasses


Institut de Chirurgie Oculaire de Montréal


Cataract surgery takes place in the operating room of the Institut de Chirurgie Oculaire de Montréal (ICOM), located next to  the Laservue Clinic.  ICOM is a Specialized Medical Center (‘Centre Médical Spécialisé - CMS’), which was accredited for the second time with Homours by Accreditation Canada in March 2017.

 

 
The cataract surgery procedure


The procedure  consists of removing the opaque crystalline lens and replacing it with an intra-ocular  lens. There are currently two types of intervention in existence: Cataract extraction by phacoemulsification, and femtosecond laser-assisted cataract surgery (LACS). At ICOM, we prefer the phacoemulsification method, the most widely used technique, in which the lens is fragmented (‘emulsified’)  with an ultrasonic probe, the fragments removed by suction. A soft intraocular lens is then be inserted inside the capsule (transparent natural bag enveloping the lens).
 
 
Intraocular lenses can simultaneously correct myopia, hyperopia, astigmatism and presbyopia

Types of intraocular lenses (implants):

Monofocal lens

This lens only corrects far vision. It is necessary to wear a reading glasses after surgery for near vision.
 
Multifocal lens

This lens corrects vision from far and near. The goal is to not need any glasses after surgery.
 
Toric Lens

This lens also corrects astigmatism in people who have it.