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Common Visual Errors Corrected by IOLs

If you suffer from cataracts, IOLs may be the best solution for achieving clearer vision. An intraocular lens, or IOL, will replace your compromised natural lens for long-term vision improvement. IOLs can correct refractive errors such as nearsightedness, farsightedness, presbyopia, and astigmatism. To learn more about the visual errors corrected by IOLs, contact the specialists at our Toronto, Ontario, practice. At Yonge Eglinton TLC Laser Eye Centre®, we will carefully assess your visual acuity and medical history to determine which type of IOL is right for you. Schedule your appointment today to find out more about this advanced treatment.

Once the IOL is placed in your eye, it will work much like a contact lens, but will provide permanent results.

What are IOLs?

Intraocular lenses (IOLs)

An IOL will replace your natural lens so that your eye can refract light properly. IOLs are most often used in cataract surgery. However, if patients have severe refractive errors, such as vision loss due to aging (presbyopia), IOLs are often used for this purpose. Once the IOL is placed in your eye, it will work much like a contact lens, but will provide permanent results.

IOLs and Common Refractive Errors

We can use IOLs to correct several vision problems. Your current eye health and vision will determine the most appropriate type of lens for your needs. At Yonge Eglinton TLC Laser Eye Centre®, we can use IOLs to treat the following conditions:

  • Myopia: Nearsightedness, or myopia, is the most common type of refractive error. This condition occurs when your eye is too long to refract light properly. As a result, light will focus in front of your retina. If you have severe myopia, or if your corneas are too thin for LASIK, a phakic IOL may be the solution. These lenses will be inserted between your cornea and iris or behind your iris.
  • Hyperopia: If your eye is unusually short, light may focus behind your retina. As a result, close objects will appear blurred or distorted, causing hyperopia (farsightedness). IOLs can correct hyperopia, however, you may still require glasses or contacts, especially if you receive monofocal IOLs. Monofocal IOLs only correct vision at one distance.
  • Presbyopia: After the age of 40, your natural lenses will begin to lose elasticity. As a result, your eyes may have trouble adjusting between different distances, and close objects could appear blurry. Multifocal and accommodating IOLs can correct presbyopia. Multifocal lenses have several visual zones, and they function similarly to bifocals. Accommodating lenses are flexible, so they will function almost exactly like your natural lenses.
  • Astigmatism: This refractive error occurs when your cornea is irregularly shaped, and your eye improperly refracts light. If you suffer from astigmatism, you will have blurred or distorted vision at all distances. Toric IOLs are the only IOL that can address astigmatism. Like multifocal lenses, they have several visual zones to correct vision at varying distances. 

Schedule an Appointment

The only treatment for cataracts is intraocular lenses. We believe that issues with your vision can have a negative impact on everyday activities, and your quality of life. To learn more about this advanced treatment, and begin seeing more clearly, contact us today.