Light projects through your pupil and lens to the back of the eye. The inside lining of the eye is covered by special light-sensing cells that are collectively called the retina. It converts light ...

This intricate structure of blue rods and red dots is a cross section through the eye of a damselfly. Insects’ compound eyes are structured very differently than the eyes of humans and other mammals, ...

If the object has pierced your eyeball and is stuck inside your eye, you might have a special X-ray or ultrasound taken to see exactly where it is. Your doctor might give you antibiotic ointment ...