When you have the LASIK procedure, your cornea is reshaped to provide the perfect angle for light to enter your eye in near perfect focus. Around the age of 40, most people experience a different condition called presbyopia in which close-up vision becomes a problem. This has nothing to do with the shape of the eye (which is what LASIK corrects), but rather with the loss of flexibility of the natural lens inside the eye. For patients over the age of 40, Dr. Dong may discuss the option of monovision to minimize the need for reading glasses. Monovision corrects your dominant eye for distance correction and provides the fellow eye with a comfortable amount of near vision. A good candidate for monovision is determined based on a number of personal factors including your prescription, occupation and hobbies.