1. Conversion from light energy to chemical energy: The light-sensitive cells in your retina, called photoreceptors (rods and cones), absorb the light energy. This energy is then converted into electrical signals.
2.Phototransduction: Within the photoreceptors, the absorbed light energy triggers a biochemical process called phototransduction. In rods and cones, a molecule called retinal changes its shape when it absorbs light, which initiates a cascade of chemical reactions that ultimately leads to the generation of electrical signals.
3. Generation of electrical signals: The electrical signals generated by photoreceptors are processed by other cells in the retina, including bipolar cells and ganglion cells. These cells further process and transmit the visual information to the brain via the optic nerve.
4. Transmission of signals to the brain: The optic nerve carries the electrical signals from the retina to the brain, specifically to the visual cortex located at the back of your brain. The visual cortex is responsible for processing the visual information and creating the images that you perceive.
So, the main energy change that takes place in your eye is the conversion of light energy into electrical signals, which allows your brain to interpret and perceive the visual world.