Astigmatism simply means your eye isn’t completely round.
Astigmatism is a type of vision defect that can be corrected with spectacles, like long-sightedness and short-sightedness. It results from the front surface of the eye being “egg” shaped, rather than hemispherical, like a tennis ball. As a result, it will be blurred and distorted for both things far away and things up close.
To correct astigmatism, spectacles or contact lenses are worn. The spectacles might not have to be worn all the time, but they will improve vision both far away and up close, your optometrist may also prescribe a special type of contact lenses called Toric.