Chemistry of eye

Histochemistry
Histochemistry of eye

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Biochemistry
Photochemistry of eye includes rods (scotopic vision) and cones (photopic vision). Rhodopsin is the light sensitive chemical found in rods. Color pigments accumulate in cones. Rhodpsin or visual purple is combination of the protein scotopsin and carotenoid pigment retinal. Rhodopsin is involved in rhodopsin-retinal visual cycle,  excitation cascade and light and dark color.

Neurotransmitters in the retinal neurons are as follows  glutamate, GABA (gamma aminobutyric acid), indolamine, dopamine, acetylcholine and glycine.

 

 

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