In our eyes there are two kinds of special cells that help us to see.
The rod cells enables us to see in dark and cone cells enable us to see in the ambient light .
Rod cells create black and white images on retina.
Cone cells create colored images.
1. Cone cells :- These cells help to create vision in the ambient light conditions. They require more light or normal light to work. But they don’t work in the low light.
2. Rod cells :- These cells are responsible for creation of image on the retina in low light conditions. They make only the black and white image that is why we see the things in black and white color in the low light conditions.
One more interesting fact is that the rod cells are present on the the corner of eye and during night vision you might have noticed the things which are present it at the corner of our view are clearer.