When light enters the eye, it activates the retina’s photoreceptor cells — cones and rods — that enable vision. Behind the retina lies the choroid, a dense network of blood vessels key for delivering ...

Some light enters the eye through the pupil, and the iris controls how much light the pupil lets in. Then, the lens works with the cornea to focus the light directly on the retina.

Pinhole Pupilloplasty offers a simple, low-cost alternative to corneal transplants, providing clear vision with minimal ...

For instance, medications, such as antidepressants, antihistamines, and antipsychotics, can affect pupil size and how much light enters the eye. Eye conditions that can cause night blindness include: ...

This changes the way light enters the eye and causes blurry vision. LASIK, a surgery that corrects the cornea's shape and improves vision, may be a good option for people with mild to moderate ...

Dry eyes occur if you’re unable to produce enough tears or they evaporate too quickly. This can alter how light enters the eye, causing you to see two images, also known as double vision.

A longer eyeball means when light enters the eye, it’s not focused properly on the retina (the light-sensing tissue lining the back of the eye). As a result, the image they see is blurry.

Why Walleye Eyes Reflect Light in Photos You’ve no doubt seen the eye of a walleye turn glassy white in photos or when a light shines on it. And you’ve certainl ...

This changes the way light enters the eye and causes blurry vision. LASIK, a surgery that corrects the cornea's shape and improves vision, may be a good option for people with mild to moderate ...