astigmatism
The refractive power of the eyeball is different on different meridians, forming two focal lines and a minimum diffuse spot. This refractive state is called astigmatism. An eye in which the light entering the eyeball cannot form a focus on the retina is called an astigmatism eye.
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Site of disease:
Eye -
Infectious :
Not contagious -
Frequent population:
All groups, youth -
Related symptoms:
Seeing double visual impairment blurred vision eye fatigue headache