ASTIGMATISM
Most people have some degree of astigmatism. Astigmatism occurs
when the front surface of your eye (cornea) is slightly irregular
in shape, resulting in vision being blurred at all distances.
Astigmatism is not a disease, but is actually a vision condition
that is quite common. When the front of your eye is more oval than
round, light does not focus properly on the back of your eye (retina).
The
causes of this irregular shape are unclear. In some cases, it may
be hereditary or it may result from such factors as pressure of
the eyelids on the cornea, incorrect posture or an increased use
of the eyes for close work.
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People
with severe astigmatism will usually have blurred or distorted
vision.
- astigmatic vision:
image of what we see is twisted or distorted (see picture
aside)
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astigmatic vision |
Those
with mild astigmatism may experience
• headaches
•
eye strain
• fatigue or blurred vision at certain distances.
OUR
EYE TOPICS
