Some special type of proteins (opsins) play major role in sensing color in eyes. what is the molecular structure of theses proteins and what is the mechanism of sensing of intensities and colors/wavelengths. How the opsins convert photo signal into electrical signal?
This might be a good place to start: http://webvision.med.utah.edu/book/part-v-phototransduction-in-rods-and-cones/phototransduction-in-rods-and-cones/
Webvision is a great educational resource for the visual pathway.
Good luck!
There are currently three known types of photoreceptor cells in mammalian eyes: rods, cones, and photosensitive retinal ganglion cells. The two classic photoreceptor cells are rods and cones, each contributing information used by the visual system to form a representation of the visual world, sight. The rods are narrower than the cones and distributed differently across the retina, but the chemical process in each that supports phototransduction is similar.[1] A third class of mammalian photoreceptor cell was discovered during the 1990s:[2] the photosensitive ganglion cells. These cells do not contribute to sight directly, but are thought to support circadian rhythms and pupillary reflex.
Thanks Mr. Morad Amir Ahmad..
I want to know the mechanism.. how actually light signal gets converted into the electrical signal..
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