Medical Definition of Cell, rod
Cell, rod: A type of specialized light-sensitive cell (photoreceptor) in the retina of the eye that provides side vision and the ability to see objects in dim light (night vision).
By contrast, the cones are the retinal photoreceptors that provide color vision and sharp central vision.Source: MedTerms™ Medical Dictionary
Last Editorial Review: 7/1/2016
Medical Dictionary Definitions A - Z
Search Medical Dictionary
- What Is Inherited Lipodystrophy?
- Do You Take Good Care of Your Eyes?
- Tips for a Clean Home & Healthy Cat