Astigmatism causes
Astigmatism may sound like a nasty, painful ailment, but it’s actually a very common eye problem that many people suffer from. A normal eye is shaped like a sphere, and astigmatism will show up in eyes that are not completely round, which leads to numerous vision problems. The good news is that it is usually very easily corrected with prescription glasses, contact lenses, and sometimes a vision correction procedure. The astigmatism isn’t really categorized as an eye disease as such, and it all comes down to the shape of the eye and how it deals with the light that enters. A normally functioning eye will evenly refract the entering light, so that we see images normally, but in a non-spherical eye, that light can be refracted in one direction more than another, which in turn can lead to the vision being blurred or wavy. There is no real idea of why a person does not have a perfectly round eye, or how it develops that, which means that astigmatism is only discovered when the symptoms start to appear.
