The uvea is also known as the uveal
tract of the eye.
The uvea is the vascular (meaning "related
to or supplied with blood
vessels") pigmented layer of the eye which is located beneath
the outer layer (which is called the sclera).
The vascular layer called the uvea consists of the
The subject of visual (also known as "physiological") optics
is a key component of many courses within the fields of both biology and
physics. It is also an essential consideration in the design of displays
and control units used in many applications from televisions and mobile
telephones to advanced aircraft. In the context of engineering "visual
optics" is one of several medical and psychological topics in the
important area of "Human Factors".