Children and Vision
People are often confused about the importance of glasses
for children. Some believe that if children wear glasses when they are young,
they won't need them later. Others think wearing glasses as a child makes one
dependent on them later. Neither is true. Children need glasses because they
are genetically nearsighted, farsighted, or astigmatic. These conditions do not
go away nor do they get worse because they are not corrected. Glasses or
contacts are necessary throughout life for good vision.
Nearsightedness (distant objects appear blurry) typically
begins between the ages of eight and fifteen but can start earlier.
Farsightedness is actually normal in young children and not a problem as long
as it is mild. If a child is too farsighted, vision is blurry or the eyes cross
when looking closely at things. This is usually apparent around the age of two.
Almost everyone has some amount of astigmatism (oval instead of round cornea).
Glasses are required only if the astigmatism is strong.
Unlike adults, children who need glasses may develop a
second problem, called amblyopia or lazy eye. Amblyopia means even with the
right prescription, one eye (or sometimes both eyes) does not see normally.
Amblyopia is more likely to occur if the prescription needed to correct one eye
is stronger than the other. Wearing glasses can prevent amblyopia from
developing in the more out-of-focus eye.
Children (and adults) who do not see well with one eye
because of amblyopia, or because of any other medical problem that cannot be
corrected, should wear safety glasses to protect the normal eye.