+A **photoreceptor** is a specialized cell or light-sensitive organelle that detects light. These biological transducers convert light energy into electrical signals, enabling [Vision](/wiki/vision) and other light-driven processes in organisms, from a simple [Eye](/wiki/eye) spot to complex visual systems.
+## See also
+- [Retina](/wiki/retina)
+- [Light](/wiki/light)
+- [Rod cell](/wiki/rod_cell)
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