Around age 40, most people start to have difficulty seeing up close. This is the time when they begin to wear bifocals or reading glasses. This is because the focusing lens inside our eyes is no longer able to bend enough to bring close objects in to focus. Monovision allows a person to see using one eye primarily for distance, and one eye primarily for near. This results in a decreased need to wear glasses for near and distance vision.
Around age 40, most people start to have difficulty seeing up close. This is the time when they begin to wear bifocals or reading glasses. This is because the focusing lens inside our eyes is no longer able to bend enough to bring close objects in to focus. Monovision allows a person to see using one eye primarily for distance, and one eye primarily for near. This results in a decreased need to wear glasses for near and distance vision.