It is usually performed in one eye (the non-dominant eye) only, but may need to be performed in both eyes if the dominant eye is mildy farsighted.
The advantage of CK is to reduce your dependence on reading glasses so that you can function throughout the day for most things without reaching for your readers. Remarkably CK will blur the distance vision very minimal and sometimes not at all in the treated eye.
This is called blended vision. This differs significantly from monovision obtained from wearing one contact lens or to do Lasik surgery for monovision. |