When you turn 40 for many the eye will gradually lose the ability to accommodate, or change focus from distance vision to close up. This thing is known as presbyopia, and is the good reason many require reading glasses or bifocals. A technique named monovision can correct one eye for distance vision, while (if necessary) correcting the other for intermediate vision.
The main goal of monovision is reducing the patients need for corrective eye problems for reading and close up activities. This technique relies a bit upon the brain to filter out the image from the eye which is not a clear focus.
Needless to say, monovision it’s not for everyone. It takes a little time to become accustomed to it, and approximately 7 weeks for the brain to adjust to each being at a different focus. Monovision can result in the loss of some degree of depth perception, and in some cases may cause reduced peripheral focus. Those with a very active lifestyle may find monovision is not the right and good answer for them.
The monovision procedure is accomplished through either contact lenses or refractive lasik eye operation such as lasik. Many physicians will recommend that patients first try the contact lenses and evaluate the results before choosing for the more permanent lasik eye procedure.
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