Myopia (shortsighted or nearsighted)
Astigmatism
Hyperopia (farsighted or longsighted)
Myopia (shortsighted or nearsighted)
In the normal eye, the cornea focuses light rays directly on the retina, resulting in clear vision without glasses or contact lenses. In myopia, or nearsightedness, the eye is longer than normal. The light rays come together at a point in front of the retina, and are out of focus on the retina. Distant objects are blurred, while nearby objects can be clear.
Astigmatism
In the normal eye, the cornea is curved the same in the horizontal and vertical directions, like a baseball. When the light rays hit the cornea, they focus at a single point. In astigmatism, the curve of the cornea is not the same in the horizontal and vertical directions. The cornea looks like a football, with a steep curve on one side and a flat surface on the other. As a result, light rays entering the cornea do not focus at a single point, causing distorted vision. Many people with myopia or hyperopia have some degree of astigmatism.
In all of these conditions, the person needs some type of corrective lens, such as glasses or contact lenses to focus the light properly. Lasik and PRK are used to change the shape and curve of the cornea in order to correct or reduce these types of refractive errors.
Hyperopia (farsighted or longsighted)
In hyperopia, or farsightedness, the eye is shorter that normal. The light rays come together at a point behind the retina, and are therefore out of focus on the retina. Nearby objects can appear blurry, while distant objects are clearer. Very farsighted patients will report that even distant objects appear blurry.
Set up a consultation appointment with us to discover if laser eye surgery is the right treatment option for your nearsightedness.
Presbyopia
As we grow older, around the age of 40, we lose our ability to see close up objects clearly. This condition known as presbyopia is correctable through the use of reading glasses. LASIK or PRK will not correct and may unmask the need for reading glasses in patients over forty years of age.
Monovision
Monovision is a treatment used to reduce dependency on reading glasses. In a monovision treatment, one eye is fully corrected for distance vision and the other eye is under corrected. The under corrected eye will be mildly nearsighted, thus allowing the patient to see up close.
Distance vision in the under corrected eye is blurrier but the close up vision is sharper. For patients over the age of 40, this may be an option to reading glasses. Patients around the age of 55 are the most successful with a monovision correction as the need for reading correction stabilizes around this time.
Monovision allows patients over the age of forty to read a label, tell time on a watch, put on make up. Reading glasses may still be required for very fine detailed near tasks, or for tasks taking a prolonged period of time.
Eventually, as we age, almost everyone needs reading glasses for up close tasks.
Monovision is not for everyone. Some people are unable to adjust to the imbalance between the two eyes. Before considering a monovision correction, a trial period in contact lenses of 3 or 4 weeks is advisable.
Set up a consultation appointment with us to discover if laser eye surgery is the right vision correction treatment option for you.
Eyetech Lasik is a leading laser vision correction clinic in Winnipeg Manitoba. LASIK eye surgeon, Dr. Desikan R. Kadambi is a renowned and experienced laser eye surgeon. Using state-of-the-art Bausch & Lomb LASIK eye correction technology we deliver the highest standard of Winnipeg eye laser surgery at an affordable price. Contact us today to book an appointment for an assessment of your vision and to determine the correct procedure to give you the best vision possible.
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