Question

explain the mechanism of the vision

Answer 1

$\mathbb{ THE \:MECHANISM\: OF\: VISION; }$
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The light rays in visible wavelength focused on the retina through the cornea and lens generate potentials( impulse) in rod and cones .
Asmentioned earlier the photosensitive compounds in the human eye is composed of opsin ( protein. ) and retineal (an aldehyde of vitamin A) light induces dissociation of the retinal from opsin resulting in changes in the structure of the opsin.This causes membrane permeability changes as a result potential differences are generated in thephotoreceptor cells this produces a signal that generates action potentials in the ganglion cells through the bipolar cells.
These action potentials are transmitted by the optic nerves to the visual cortex area of the brain where the neural impulses are analysed and the image formed on the retina is recognised based on earlier memory and experiences....

# be brainly

Answer 2

Heya....

====== Mechanism of vision... ======

• Firstly , the light emit on our eyes and in a visible wavelength focused on the retina through cornea...

• Then lenses, generate the impulse ....

• Then light indices dissociation of the retina from opsin result in change in structure of opsin...

• These actions impulses as signal transition to the brains through optic nerve...

• Lastly , brain accept the signal and just the image is visible to us...

_____ All this process occurs in the friction of seconds ...

Thank you