It is largely responsible for color vision in humans, and enables high acuity, such as is necessary in reading.

This divergence results in the high visual acuity, or the high ability to distinguish detail, of cone cells compared to rods.

These are mainly woodland birds with long tails and high visual acuity, hunting by sudden dashes from a concealed perch.

The fovea on the retina; which yields higher visual acuity, is not well-developed.

Low retinal summation results in high visual acuity, with individual photoreceptor cells sending their own signals.

Another complication for vision in frontal-eyed animals is the development of a small area of the retina with a very high visual acuity.

LuAnn willed her hearing to the highest possible acuity.

However, it is this high visual acuity that is needed to perform actions such as reading words or recognizing facial features, for example.

This high ratio has been maintained because of the high acuity of care.

There is currently no science based evidence available to confirm the popular belief that sighthounds have a higher visual acuity than other types of dogs.