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Toric lens

The toric lens is qualified as such on account of its optical component. It allows correcting astigmatism. Astigmatism is a very common refractive (focusing) error in which the eye’s refractive powers vary in the different axes. The error can be corrected with prescription eyeglasses, but also with intraocular lenses (IOLs). After cataract surgery, the cornea is the only thing left that can cause astigmatism. If the cornea is not perfectly round, astigmatism will occur and could result in blurred vision if not corrected with eyeglasses. The toric lens is therefore suitable for patients with astigmatism who wish to improve their chances of not having to wear glasses for distance vision after surgery.

Usually, by correcting the astigmatism, the distance vision is good and allows a simpler near vision correction. It is not covered by the Quebec Health Insurance Plan. A patient desiring a near correction within his lens can choose a multifocal toric lens. This type of lens unites the two technologies.

A patient who doesn't have enough astigmatism to justify a toric lens can either choose between an aspherical lens or a multifocal lens.

Dr. Laurent Lalonde

Dr. Laurent Lalonde

Dr. Lalonde obtained his medical degree and his graduate diploma in ophthalmology from the Université de Montréal, respectively, in 1988 and 1991.

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