By none
Do you experience symptoms such as blurry or fluctuating vision, headaches and eye strain, which usually manifest after reading a book, staring at a computer screen or looking at far-off distances?1,2 It’s possible that you have astigmatism, a type of refractive error.
Don’t be frightened, however; astigmatism is fairly common and is not a dangerous disorder. But to truly understand why astigmatism occurs, you must first learn how the human eye works.
Here’s How Your Vision Works
When you look at a particular object, light rays from the object need to pass through the eyes so that …read more
Source: mercola
Thanks! Share it with your friends!
Tweet
Share
Pin It
LinkedIn
Google+
Reddit
Tumblr