Presbyopia is a vision condition in which the
crystalline lens of your eye loses its flexibility, which makes it
difficult for you to focus on close objects.
Presbyopia
may seem to occur suddenly, but the actual loss of flexibility takes
place over a number of years. Presbyopia usually becomes noticeable in
the early to mid-forties. Presbyopia is a natural part of the aging
process of the eye. It is not a disease and it cannot be prevented.
Some signs of presbyopia include the tendency to hold reading
materials at arm's length, blurred vision at normal reading distance
and eye fatigue along with headaches when doing close work. A
comprehensive optometric examination will include testing for
presbyopia.
To help you compensate for presbyopia, your optometrist can
prescribe reading glasses, bifocals, trifocals or contact lenses. Since
presbyopia can complicate other common vision conditions like
nearsightedness, farsightedness and astigmatism, your optometrist will
determine the specific lenses to allow you to see clearly and
comfortably. You may only need to wear your glasses for close work like
reading, but you may find that wearing them all the time is more
convenient and beneficial for your vision needs.
Since the effects of presbyopia continue to change the ability of
the crystalline lens to focus properly, periodic changes in your
eyewear may be necessary to maintain clear and comfortable vision.