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You want to be able to read that great novel up close without your glasses, but your CK eye surgeon says that conductive keratoplasty will diminish your distance vision in your non-dominant eye, or the eye that's not primarily focusing on this text right now.
CK eye surgery is designed to help you achieve monovision, in which one eye is corrected for distance and one for near vision. If you have healthy eyes but need glasses to see close objects or perform close work, your CK eye doctor will induce myopia, or nearsightedness, in your eye. This may mean that, for a time, your non-dominant eye won't be able to see the title of a book or the print on the computer screen from across the room.
While the effects of CK are permanent, the loss of distance vision usually diminishes with time.
Tip: If you're willing to sacrifice distance vision while driving to be able to read Shakespeare, doctors recommend that you have another form of refractive surgery to correct any results that you're not satisfied with. Side effects or visual glitches from CK are usually temporary.