So while veins and arteries might take circuitous routes to accommodate the vagaries of organs and anatomy, their diameter ...

Scientists at the Jules Stein Eye Institute at the David Geffen School of Medicine at UCLA have discovered that certain ...

New research shows that retinal neurons can rewire to preserve vision in retinitis pigmentosa, a genetic disease causing blindness.

Scientists at the Jules Stein Eye Institute at the David Geffen School of Medicine at UCLA have discovered that certain ...

The eye of a snake has a rounder lens compared to human beings, leading to more acute vision. Their lens design is advantageous when it comes to speed and accuracy when they trap their prey.

Embedded in the retina are millions of light-sensitive cells, called photoreceptors. There are two types: cones and rods. Cones are responsible for producing the visual sharpness of the eye — seeing ...

Respectively, these components reflect the hyperpolarization of photoreceptor cells in response to light stimulation, reflect bipolar cell activity, and provide information about the reciprocal ...

Instead the result is a sort of hybrid vision in which the eyes can perceive only some colors. “Rods and cones don’t have separate signal pathways to the brain,” Neitz says.

It is made up of photoreceptor cells, known as rods and cones, which allow you to perceive light, color, and fine details. Conditions associated with the retina include different forms of ...

Central Vision Anatomy The retina is the general light-sensitive tissue at the back of the eye. The macula is the central part of the retina, and the fovea is the center of the macula. Central vision ...

Background on Dog Vision The abundance of rods in a dog’s eye allows it to see better in the dark than humans. ©GCapture/Shutterstock.com A dog’s eye interprets light much like the eye of a human.