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 may cause a gradual reduction in your central vision over time, so you might not recognize AMD at first.

In this video, learn about different parts of the human eye and how our sight works. Follow me please class. We’re here at the optician’s to get a good look at a human eye and find out how it ...

So the first type is to base a retinal vein occlusion based on the parts of the retina that it's involving. So you can have something called a central retinal vein occlusion, and that's where you ...

If this occurs in or near the center of the retina in an area known as the macula, it is called a macular hole, which may be more noticeable than a tear in the outer parts of the retina.

We chose these body parts because they were featured in legal codes from five different cultures and historical periods that we studied: the Law of Æthelberht from Kent, England, in 600 C.E., the ...