This excitation in turn leads to activation of retinal neurons, one set of which fires impulses in the optic nerve, conveying information to the brain about the light received.

• 锥细胞兴奋之后会活化视网膜的神经元，其中有一组神经元会引发视神经产生神经冲动，将相关的光讯息传给大脑。