Question

explain how retina send image to the brain and how brain help producing a sense of vision

Answer 1

The retina is a delicate membrane which contains enormous number of light-sensitive cells called Rods and Cons. These cells get activated upon illumination and generate electric signals. These signals are sent to the brain via the optic nerves and the brain interprets these signals and processes the information so that we perceive objects as they are.

Answer 2

retina send image to the brain by sending it to the optic nerve and then the nerve send it to the brain
the image sent to the brain is upside down and the brains is the image as it is actually seen

hope it helps