Abstract

Healthy Eyes

Author(s): K. Bisht

Healthy vision is essential to our capacity to see the world. Our eyes are incredibly complicated. When everything is working well, all you have to do is open your eyes and look around. However, our vision can deteriorate at times. Millions of Americans suffer from visual difficulties. Blurry vision, black spots, or strange shifts in what you see are common symptoms of the condition. However, some eye disorders don't show any symptoms until they've progressed to the point where they're dangerous. Some of these issues can result in lifelong visual loss, if not outright blindness. That is why it is critical to have frequent, in-person eye exams. If discovered early enough, many sight-threatening disorders can be treated or slowed. Many common visual disorders are simple to correct once they are identified.

Light passes through the clear front surface of the eye, called the cornea, and is focused on the rear of the eye, called the retina, in a typical, healthy eye. Behind the coloured iris, a clear lens helps concentrate images on the retina.