Pink eye is very common. It usually is not serious and goes away in 7 to 10 days without medical treatment. Generally speaking, pink eye is redness and swelling of the conjunctiva. It is also called conjunctivitis. Viral and bacterial pinkeye are contagious and spread very easily. Pink eye can be caused by chemicals, smoke, fumes, dry eyes and infections. While pink eye can cause redness in the white of the eye, swelling of the upper eyelid, which may make the lid appear to droop and clear or slightly thick, whitish drainage. Astigmatism is easy to cause eye sight problems, especially blurry vision. All eye problems are related with each other. So there is no doubt that pink eye can cause astigmatism, but this rate is not high. That is pink eye exists a certain degree to lead to astigmatism. Plus, if you really get pink eye, you’d better stay at home and receive medical treatments.