Editing Presbyopia (section)

===Interaction with myopia===
People with low [[myopia|near-sightedness]] can read comfortably without eyeglasses or contact lenses even after age forty, but higher myopes might require two pairs of glasses (one for distance, one for near), bifocal, or progressive lenses. However, their myopia does not disappear and the long-distance visual challenges remain. Myopes considering [[refractive surgery]] are advised that surgically correcting their nearsightedness may be a disadvantage after age forty, when the eyes become presbyopic and lose their ability to [[accommodation (eye)|accommodate]] or change focus, because they will then need to use glasses for reading. Myopes with low [[Astigmatism (eye)|astigmatism]] find near vision better, though not perfect, without glasses or contact lenses when presbyopia sets in, but the more astigmatism, the poorer the uncorrected near vision.{{cn|date=July 2022}}

A surgical technique offered is to create a "reading eye" and a "distance vision eye", a technique commonly used in contact lens practice, known as [[monovision]]. Monovision can be created with contact lenses, so candidates for this procedure can determine if they are prepared to have their corneas reshaped by surgery to cause this effect permanently.{{cn|date=July 2022}}