Retina

A) Photoreceptor cells that function in black and white vision
B) Photoreceptor cells that function in color vision
C) The opening in the iris
D) The innermost tunic of the eye
E) A pigmented contractile structure

Retina

The light-sensitive layer of tissue at the back of the inner eye, responsible for converting light into neural signals for visual recognition.

Photoreceptor Cells

Specialized neurons in the retina that convert light into signals that can stimulate biological processes.

Innermost Tunic

The deepest layer of a structure, often referring to the inner layer of a blood vessel or other tubular organ.