32+ Anatomy Of Eye Layers Images. The eye has three main layers. The sclera is outermost layer of the eyeball.
Human eye is spherical about 2.5 cm in diameter. The eyeball consists of three layers: A small, red portion of the corner of the eye that contains modified sebaceous and sweat glands.
Immediately internal to the sclera is the choroid, which is dark as it is highly pigmented.
Anterior (iris and ciliary body) and posterior (choroid) the internal layer, or the sensory part of the eye, the retina It is composed of light sensitive cells known as rods and cones. The outer layer of the eyeball is a tough, white, opaque membrane called the sclera (the white of the eye). The structure of the mammalian eye has a laminar organization that can be divided into three main layers or tunics whose names reflect their basic functions: