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Lenses Used for Cataract and Refractive Lens Exchange (RLE) Surgery

Upon completing your extensive pre-operative examination, the surgical team will inform you if you need cataract or RLE surgery. If so, the surgeon will be required to perform an intraocular surgery which involves removing your natural crystalline lens and implanting an artificial intraocular lens (IOL) with a designated power tailored to your eye.  

The following is a description of the variety of lenses offered at the Cataract MD centre. Your candidacy for these lenses depends on your particular eye condition and the visual needs that are most important in your life. Each lens has its strengths and weaknesses, and together we will choose the one best suited for you. 

Cataract MD always offers the highest quality IOLs to deliver the finest results. When undergoing a procedure with us, you can be confident that all our lenses are widely used in the field of intraocular surgery; they are FDA and Health Canada approved.

Premium Contrast Monofocal IOL

As we age, it is part of a natural progression for the quality of images and vibrancy of colors to start to fade; this is why it can be more difficult to see to drive when we are older. In addition, the onset of a cataract will increase the visual impediments. Premium contrast IOLs compensate for minor imperfections on the average cornea called spherical aberrations, which contribute to the decreases in image quality. These lenses have a patented wavefront design, fashioned for improved functional night vision and sharper contrast sensitivity in day and night settings. Thus, these lenses are the best available to improve image quality. The distance vision is corrected and patients use glasses for near activities.

Toric Monofocal IOL

In astigmatism, the cornea is curved unevenly, shaped more oval than round. Light passing through the uneven cornea is focused in two or more locations. Distance and close objects may appear blurry. This lens might be recommended for patients with significant astigmatism- an oval shape of the cornea. When the eye is not a perfect sphere, the focusing power is different at two or more meridians and can make images appear distorted both near and far. These lenses compensate for corneal astigmatism and provide distance correction. With this combination, patients can achieve greater spectacle independence for distance vision. Glasses are still required for near activities.

Multifocal IOL

These lenses correct for multiple distances; they provide a broader range of spectacle independence compared to a monofocal lens. These lenses reduce the need for glasses for near tasks while still achieving distance correction. For certain activities, glasses might still be required.


The two kinds of multifocal lenses offered are restor and rezoom.

ReSTOR® is modeled after microscope and telescope technology and focuses at both near and far distances, decreasing your dependency on glasses.

The ReZoomMultifocal Lens has a patented new design called Balanced View Optics™ Technology. This lens design creates multiple focal points so you can see well at a variety of distances, be it near, mid-distance, or far.

Once you have undergone the appropriate tests, our surgical team will advise you of your options from the various lenses.


Fine-tuning your vision

In addition to implanting the intraocular lens, your surgeon may elect to perform a Limbal Relaxing Incision (LRI). This is a widely accepted additional procedure in the field of intraocular surgery to aide in reducing residual astigmatism at the same time as the primary surgery. This can provide quicker visual rehabilitation.

Laser Vision Correction

With any implanted lens, there is a possibility a small residual prescription for distance follows the initial surgery. In some cases, to correct a residual prescription, Laser Vision Correction is performed after the eye has healed from the implant surgery. Your candidacy will be assessed by the surgical team. Should you meet the criteria for this enhancement procedure, we will handle your care within LASIK MDat no additional cost for the touch-up LASIK or PRK.