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As already described under "farsightedness",
the ability of the eye lens to change shape in order to focus on different
distances decreases with age.
In the beginning it is helpful to hold the newspaper further away,
but later on in life every person with normal vision (starting at approximately
age 45) will need reading glasses for close-up vision.
These contexts are especially important for nearsighted
people.
A person with slight nearsightedness (approx. -2 to -3 dioptres) will
always need glasses for focused distance vision. For the purpose of
reading, the glasses can simply be removed; this person is able to read
without glasses. A mild nearsightedness makes it possible to read without
glasses at an older age; however, glasses will always be needed for
distant vision (for example, driving a car or watching television).
If nearsightedness is corrected by a surgical procedure, glasses will
no longer be needed for distance vision. With increased age, presbyopia
will occur as with any other person, and reading glasses will be needed.
Presbyopia = Reading glasses?
New aspects of presbyopia correction
Patients with a refractive error and a beginning cataract may be eligible for multifocal intraocular lenses.
Patients with normal sight may qualify for a new product called AcuFocus.
AcuFocus is a corneal implant, which will be embedded in the cornea of one eye under a LASIK-like
corneal flap. The FreeVis LASIK Center Mannheim is one of only few European clinics participating in the international clinical AcuFocus study. |