When evolution skeptics want to attack Darwin's theory, they often point to the human eye. How could something so complex, they argue, have developed through random mutations and natural selection ...

Close-up of a human eye with two black pupils 40.Another cool eye-related thing is kayser-fleischer rings, which usually occur in people with Wilson's disease. Close-up of a human eye, showing ...

The intricacy and seeming perfection of the eye, both as an object of anatomical beauty and as a working machine, have worried and intrigued scientists, philosophers and zealots, especially during ...

The eyes of a Cuban rock iguana, a gargoyle gecko, a blue-eyed black lemur, a southern ground hornbill, a red-eyed tree frog, a domestic goat, a western lowland gorilla, and a human This story ...

They also tend to have pupils that open more widely in low light. So, at the outset, nocturnal eyes gather more light than human eyes do. After the light passes through the pupil, it is focused by ...

Inside the human eye, the retina is made up of several types of cells, including the light-sensing photoreceptors that ...

TimesMachine is an exclusive benefit for home delivery and digital subscribers. Full text is unavailable for this digitized archive article. Subscribers may view the full text of this article in ...

By analysing the properties of animals' visual systems, we can model what the world would look like through their eyes. The images below each show a scene as viewed by a human. Drag the slider to the ...

This clip is a look at the human eye and how it works. We illustrate the functions of the eye with models, film clips and magnified images. The eye is a ball with a hole at the front, the pupil ...

Researchers developed pig retinal organoids similar to human ones, advancing stem cell-based vision restoration and enabling ...