Usually, the pupils in each eye dilate or constrict simultaneously. When they do not, the pupils may appear to be different sizes. In this article, learn about the possible causes for pupils of ...

Prey eyes have a negative canthal tilt and visible ... Aura reflects one's physical, emotional, and spiritual state. People ...

The presence of the tapetum can be observed at night when a pair of glowing eyes reflects back a flashlight or some other light source. (Interestingly, different animals have different color ...

WE have shown 1 that the impression of brightness produced by a light ray which forms an image on a fixed area of the retina depends in high degree on the position of entry of the ray in the eye ...

Through natural selection, different types of eyes have emerged in evolutionary history -- and the human eye isn't even the best one, from some standpoints. Because blood vessels run across the ...

Eye colors vary according to the amounts of each, with different combinations leading ... “It’s a way we can actually look into the eyes of the felid ancestor,” Tabin says.

IN the past many investigations have been carried out on the static and dynamic reactions of the human pupil to illumination of the eye using white light. In this respect it seems surprising that ...