As people enter their 40s, they start to develop presbyopia, which is a gradual worsening of close-up vision (see #4). This is part of the natural aging process of the eyes, regardless of whether a person has had laser vision correction. For people with presbyopia, Dr. Ashraf can create an effect known as monovision. This means that one eye will be left slightly nearsighted, thus enabling the eye to focus on print such as labels and menus without reading glasses. This often allows to read small print without reading glasses, well into their 50s. However, as the patient gets older, it will be necessary to wear reading glasses. For people over age 40 who are used to removing their glasses to read, they must realize this will no longer be an option following a full correction of their nearsightedness with this surgery. Shortly after the procedure, it’s possible that a temporary pair of reading glasses may be necessary if the patient is approaching 40, as the laser, by design, causes an early over-correction that normally goes away with time.