Refractive error is a common eye disorder in which the eyes can’t clearly focus on the images of objects looked at. There are numerous types of refractive error such as short-sighted, long-sighted or presbyopia which is when you need glasses to read as we grow older. These are common refractive errors.
Astigmatism might be the most misunderstood vision problem. Even the name is challenging to many people, who incorrectly call it “stigmatism.” In malay, it is often being called as “silau”.