Monovision
"Monovision is the method of using one eye for distance vision and the other eye for near vision. Contact lenses, refractive surgery, and intraocular lenses are all methods used for monovision. When a patient chooses monovision, the dominant eye, or the one that would be used to focus on a camera, becomes the distance eye and the other eye is focused for close vision."
"The monovision method works because the brain learns to adapt to which eye sees at which distance. This method is also a form of a concept known as simultaneous vision. There is usually an adjustment period in adapting to this method of vision. Most patients find they are able to adjust. Because surgery is a permanent solution, doctors advise that patients try monovision contact lenses first."
"Disadvantages of monovision include a lack of visual sharpness. Persons who require very sharp vision due to a hobby or occupation may not be pleased with monovision results. Another drawback of monovision is that some patients experience decreased depth perception or blurred vision in the eye that focuses on near vision in certain situations."