DEAR DOCTOR K: At my last visit, my eye doctor told me I have astigmatism. He told me what that means, but I still don’t really understand what it is. Please explain it to me. DEAR READER: Astigmatism ...

Astigmatism is a common condition that affects how your cornea directs light to your retina. It’s a refractive error that occurs due to an abnormal or uneven ...

Have you ever gone to the optometrist for an eye test and were told your eye was shaped like a football? Subscribe to our newsletter for the latest sci-tech news updates. Or perhaps you've noticed ...

Flora Hui works part-time in private practice as an optometrist. Angelina Duan works in private practice as an optometrist. The eye acts like a camera, capturing light through the front surface (the ...