UNIVERSE | SCIENCE | TECHNOLOGY on Instagram: "the three main refractive states of the human eye: normal vision (emmetropic), long-sightedness (hypermetropic), and short-sightedness (myopic), showing how light focuses differently in each condition. Emmetropic (Normal) Eye: Light rays from a far object focus precisely on the retina, resulting in a clear image. Long-sighted (Hypermetropic) Eye: The image of a nearby object is formed behind the retina, often because the eyeball is too short. Short-