Presbyopia is a natural occurrence in which the eye can no longer tightly focus up
close. It most commonly develops in people around the age of 40.
What causes presbyopia?
In young people, the lens is soft and flexible, and readily changes shape to focus. Over
time there is a gradual hardening of the material making up the lens; as a result, its
ability to focus decreases steadily.
What are the symptoms of presbyopia?
People with presbyopia often believe they have developed longsightedness; while they
can read street signs and watch movies comfortably, they are unable to bring small
print, such as the telephone book, or close work, such as embroidery, into focus. In
fact, whereas longsightedness is caused by a misshapen eye, presbyopia is simply the
result of the lens becoming less flexible.
How can you correct presbyopia?
People who have presbyopia can have their vision corrected by: