If evolution occurs through gradations, the critics say, how could it have created the separate parts of the eye -- the lens, the retina, the pupil, and so forth -- since none of these structures ...

Age-related macular degeneration (AMD) AMD is a common eye condition that happens as you get older. It affects the macula, ...

Learn about when to start wearing reading glasses depending on age and vision changes, and explore the top five brands to ...

Nocturnal animals tend to have proportionally bigger eyes than humans do. They also tend to have pupils that open more widely in low light. So, at the outset, nocturnal eyes gather more light than ...

Lights on again please! Now, the light that goes in through the pupil passes through a lens that sits behind it. The lens focuses the light on the retina at the back of the eye. Because the front ...

I will often take a retinoscope, and I will shine the light beam into your retina and by seeing the reflection of that eye come back at me, I can dial in lenses ... that the pupil is brisk and ...

Analysis by sophisticated wavefront-sensing technology and customized ray-tracing has now revealed that the eye is actually an aplanatic design, with the cornea and lens compensating each other's ...

Clear vision is what allows us to experience the world in vivid detail and navigate our daily lives with ease. But there are hundreds of eye diseases, from common conditions such as cataracts ...