The lens is a structure tucked deep inside the eye that helps us focus our vision ... if precise color vision is important to ...

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 ...

As an example, 26% of patients with hydrocephalus receive radiation dose to lenses higher than 150 mSv within 3 years. In paediatric patients, repeated head CT examinations result in average ...

Patients with a variety of conditions can benefit from this type of scleral lens. Examples include patients experiencing severe dry eye, who have had trauma to the eye or eyelid, or who have any type ...

The lens focuses the light on the retina at the back of the eye. Because the front of the eye is curved, it bends the light as it goes in, turning the image on the retina upside down. Inside the ...

Pupil Hole in the middle of the iris. Allows light to pass through as it enters the eye. Lens Transparent, bi-convex, flexible disc behind the iris. It is attached to the ciliary muscles by the ...