Light-sensing cells in the retina convert photons of light into electrical signals the brain can understand.
Brain Bytes showcase essential facts about neuroscience.
![blue rods and cones](https://www.brainfacts.org/-/media/Brainfacts2/Brain-Anatomy-and-Function/Cells-and-Circuits/Article-Images/rods-and-cones-brain-byte-best.jpg)
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