The vertebrate retina contains specialised cells (photoreceptors) whose function is to absorb light. Generally, two types of photoreceptors are present — rods and cones. Although basically of similar design, these cells are distinguishable morphologically. However, problems may arise when the retina contains only one type of photoreceptor. It may then be necessary to resort to physiological studies before proper identification is possible.
KeywordsGanglion Cell Outer Segment Bipolar Cell Amacrine Cell Horizontal Cell
Unable to display preview. Download preview PDF.