Terms
- Retina - the lining of the eye containing receptor cells that are sensitive to light.
- Fovea - The small area in the center of the retina that is the center of the visual field. Fovea contains no rods
- Light - Small segment of the electromagnetic spectrum to which our eyes are sensitive.
- Rods - Receptor cells in the retina responsible for night vision and perception of brightness. Function well in dim light.
- Cones - Receptor cells in the retina responsible for color vision. Function best in bright illumination.
- Adaptation - Adjustment of the senses to the level of stimulation they are receiving.
- Bipolar Cells - Neurons that have only one axon and one dendrite; in the eye, these neurons connect the receptors on the retina to the ganglion cells.
- Ganglion Cells - Neurons that connect the bipolar cells to the brain.
- Optic Nerve - The bundle of axons of ganglion cells that carries neural message from each eye to the brain.
- Visual Acuity - The ability to distinguish fine details visually.
- Visual Accommodation - The process of changing the curvature of the lens to keep the light entering the eye focused on the retina.