An
ophthalmologist is a medical doctor who
specializes in the eye, detecting and
treating eye diseases with medications
and surgery. An optometrist examines
&detects vision problems and prescribes
glasses. An optician interprets
the optometrist's prescription and
dispenses eyeglasses or contact lens.
An optician is to an optometrist, as a pharmacist is to a doctor.
A visual defect caused by an eye surface
that is irregularly shaped. People with
astigmatism see less clearly at any
distance. It is corrected by the help of
cylindrical lens.
It is also known as near-sightedness.
The image of the objects we see is
formed ahead of the retina instead of
over it . It is corrected by the help of
concave (minus) glasses.
It is also called farsightedness. The
image of objects we see is formed behind
the retina instead of over it. It is
corrected by the help of convex (plus)
glasses.
There is difficulty in reading and near
work. It occurs in people over 40 years
of age. It is due to age related
weakness of the eye muscles which are
used to focus on near objects. It is
corrected with the help of convex (plus) glasses.
You can train your eye muscles to work
better together and correct problems
like strabismus (crossed eyes )
which involves training the muscles that
align the eye. Accommodative exercises
may also help children who have strain
while reading and writing.
Yes ! "snow blindness" and a welder's
flash are examples of "sun burned" eyes.
Outdoor enthusiasts and those with
sensitive eyes should invest in
sunglasses with an ultraviolet filter to
block harmful UV radiation from the sun.
Contact Lens wearers are
especially sensitive to bright light,
they should always wear a good pair of
non-prescription sunglasses with their
contacts when they are outside.
