In a comparative analysis across vertebrates of the many cell types in the retina -- mice alone have 130 types -- researchers concluded that most cell types have an ancient evolutionary history. Their ...

What Is a Dominant Eye (Ocular Dominance)? A dominant eye is the eye your brain “favors.” Just like you rely on one hand more than the other, your brain relies on one eye more than the other. When you ...

Eye stroke, also known as retinal artery or vein occlusion, is a serious medical condition which happens when the blood supply to the retina gets blocked. Retine is the light-sensitive tissue at the ...

Yet to Mother Nature, the evolution of the eye isn’t really a difficult feat at all, it turns out. Indeed, there are about 10 different types of eye design in the animal kingdom, and eyes have evolved ...

Karthik Shekhar and his colleagues raised a few eyebrows as they collected cow and pig eyes from Boston butchers, but those eyes — eventually from 17 separate species, including humans — are providing ...