The other types of refractive errors are: Patients can have more than ... Park says that it's important to note that screens and devices don't cause astigmatism or have any effect on them since ...

Myopia is a refractive error (blurred vision at a given distance) that affects about 30% of the world's population. This proportion is increasing so quickly that it ...

As part of our research spotlight feature, Megan Doyle and colleagues discuss their findings when evaluating the best ...