test is done one eye at a time. Cover the other eye and view
the astigmatism dial. Do all the lines appear equally dark?
If so, you do not suffer from astigmatism. However, if some
lines appear significantly darker than others, you have astigmatism.
Note : The danger of astigmatism
is a condition where light rays entering the eyes are unevenly
refracted and brought to separate points of focus. The most
common cause for this is due to an oval-shape cornea.
of astigmatism is when it goes undetected and uncorrected
in the young child. As the young child's eye is still developing,
the constantly blur focus caused by astigmatism will lead
to the development of a lazy eye (amblyopia).
suddenly developes, it may mean the onset of a potentially
blinding eye disorder affecting the cornea called keratoconus.
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