The Amazing Journey of a Sight Signal

  1. A photon strikes your retina—your brain begins to “see.”
  2. Electrical pulses travel from eye to optic nerve to the visual cortex.
  3. Each step refines the signal, sharpening edges and motion.
  4. Left and right eyes send overlapping views for depth.
  5. The thalamus acts as a relay, sorting visual priority.
  6. The brain builds a 3D world from two flat images.
  7. Peripheral vision detects movement faster than central sight.
  8. Processing takes milliseconds, but awareness feels instant.
  9. Memory fills in what you don’t fully see.
  10. Your entire visual world is built from electricity and interpretation.