Photoreceptor cell



![Normalized human photoreceptor absorbances for different wavelengths of light[9]](/uploads/202501/06/1416_Color_Sensitivity5502.jpg)
A photoreceptor cell is a specialized type of neuron found in the retina that is capable of phototransduction. The great biological importance of photoreceptors is that they convert light (visible electromagnetic radiation) into signals that can stimulate biological processes. To be more specific, photoreceptor proteins in the cell absorb photons, triggering a change in the cell's membrane potential.