Rods are responsible for vision at low light levels (scotopic vision). They do not mediate color vision, and have a low spatial acuity. Cones are active at higher light levels (photopic vision), are capable of color vision and are responsible for high spatial acuity. The central fovea is populated exclusively by cones.
In respect to this, how do rods and cones work?
There are two types of photoreceptors involved in sight: rods and cones. Rods work at very low levels of light. We use these for night vision because only a few bits of light (photons) can activate a rod. Cones require a lot more light and they are used to see color.
Also, what are rod and cone cells? Rod cells and Cone cells are the two types of photoreceptor cells found in the retina of eyes. In other words, these cells assist in vision in presence of light. Rod cells: A type of photoreceptor cells in the eye found concentrated at the outer edges of the retina.
Secondly, what is the function of the cones in the eye?
Cone cell. Cone cells, or cones, are photoreceptor cells in the retinas of vertebrate eyes (e.g. the human eye). They respond differently to light of different wavelengths, and are thus responsible for color vision and function best in relatively bright light, as opposed to rod cells, which work better in dim light.
Where are the rods and cones located?
The rods and cones are the photoreceptive cells of the retina, at the rear of the eye. The cones cells are responsible for color vision, and are most dense in the central portion of the retina, an area called the fovea.