Lenses Used for Cataract Surgery
Cataracts are a common part of the aging process. A clouding of the natural lens of the eye, cataracts result in degraded vision that eventually cannot be improved by wearing glasses or contact lenses. Fortunately, modern cataract surgery can correct cataracts by replacing the natural lens with an artificial intraocular lens (IOL). Advances in the lenses used for cataract surgery at TLC Yonge Eglinton Laser Eye Centre in Toronto offer a number of great options for clear vision. With recently developed IOLs, you can attain even better vision than you had prior to getting cataracts, even if you have been wearing corrective lenses for years. To learn more, or to schedule an evaluation with one of our surgeons, please contact our friendly staff today.
About Intraocular Lenses (IOLs)
Made of silicone or plastic, IOLs are small lenses that replace the clouded natural lens removed during cataract surgery. IOLs are about 5-6 mm in diameter, and are either foldable or non-foldable. We use only foldable IOLs for cataract surgery. Because they are inserted and then unfolded inside the eye, they require a smaller incision that results in a much quicker healing time with less astigmatism. IOLs can be used to correct different types of visual errors.
When you have cataract surgery, you can choose the type of IOL to replace your natural lens. You can opt for a monofocal IOL, which corrects your vision at one distance (near, intermediate, or far), a toric lens, which corrects for astigmatism, or a multifocal IOL, which corrects your vision at all distances simultaneously. A type of premium lens, multifocal IOLs can reduce or eliminate your dependence on glasses. Monofocal lenses do not have this ability, but because they are covered by insurance, the cost of cataract surgery is less than with premium lenses.
Multifocal IOLs and Presbyopia
The gradual loss of near vision that nearly everyone experiences as they grow older is called presbyopia. It is caused by loss of flexibility of the lens, which limits its ability to change shape and focus on images that are close up. When you choose to have your natural clouded lens replaced with a multifocal IOL during cataract surgery, you can reduce the need for eyewear such as bifocals or reading glasses.
Types of Premium IOLs
Alcon ReSTOR® Intraocular Lens
The Alcon ReSTOR® lens is an exciting alternative to monofocal lenses. This bifocal IOL contains lighting technology that leaves natural colors unaltered and quality of vision unaffected in any light. The mild yellow tint on the lens will filter out short-wavelength blue light, believed to be protective against aging changes of the retina. Other advantages of this cataract surgery lens include restoration of a full range of vision and the ability to easily focus at near distances.
AMO ReZoom® Intraocular Lens
These cataract surgery lenses are multifocal lenses. This means that it will restore close up, intermediate, and distance vision. This lens is excellent for patients who need mid- and long-distance vision correction.
AMO TECNIS® Multifocal lens
Similar to the ReSTOR® lens, this cataract surgery lens is also a bifocal lens, excellent for close up and distance vision.
Alcon AcrySof® IQ Toric Intraocular Lens
This lens is an excellent choice for patients with astigmatism. It is very accurate at correcting astigmatism and cataracts in a single surgery, and can result in excellent vision without glasses for distance.
Learn More About Cataract Surgery Lenses
We understand that cataract surgery can be intimidating, especially without a solid understanding of the procedure. The team at TLC Yonge Eglinton Laser Eye Centre educates each patient on the treatment options available to them during their personal consultation. Contact us today to discover which type of IOL is ideal for you and your needs.