flow chart of vision

The flow chart of mechnaism of vision is as under:

Light reflected from the object falls on the eyes.      
                                 ↓
The light passes through the conjuctiva, cornea, aqueous humour, lens and vitreous humour                                                                   
                                
All these structures refract light such that light falls on retina         
                                
The light received by retina is absorbed by rod and cone cells that activates the pigments present in their vesicles.
                                
The activation of pigments creates action potential in the membrane of vesicles.
                               
The action potential travels in the form of impulse to the optical lobe of brain through optic nerves
                               
The information is processed and we are able to see the image

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