When it comes to astigmatisms, most people's knowledge doesn't really go past that one commercial with the peppy twins from 2007.
But people should probably be a little more educated on the topic, considering the fact that nearly 33% of Americans have astigmatism to some degree.
Astigmatism is an eye condition that causes one's vision to be blurry from both near and far distances. This is due to the curvature of the cornea having an irregular shape.
One of the telltale signs of having astigmatism is struggling to see at night. For example, if you're driving, you'll probably see massive glares and halos coming from the traffic and car lights. It might look a little something like this: