New research reveals the key chemical process that corrects for potential visual errors in low-light conditions. Understanding this fundamental step could lead to new treatments for visual deficits, or might one day boost normal night vision to new levels? Like the mirror of a telescope pointed toward the night sky, the eye's rod cells capture the energy of photons ― the individual particles that make up light. The interaction triggers a series of chemical signals that ultimately translate the photons into the light we see. The key light receptor in rod cells is a protein called rhodopsin. Each rod cell has about 100 million rhodopsin receptors, and each one can detect a single photon at a time.To see more details visit,www.sciencedaily.com