Did you know your eyes breathe? The cornea — the transparent outer layer of your eye — has no blood vessels. Unlike most body tissues that get oxygen through the bloodstream, your cornea absorbs oxygen directly from the air through the tear film on the surface of your eye. This is crucial for maintaining its clarity and allowing light to pass through unobstructed. This unique oxygen supply system is why extended contact lens use can be harmful — it blocks the cornea from “breathing.” Without enough oxygen, the cornea can swell, become irritated, or even suffer permanent damage. So take care of those air-breathing marvels every time you blink — your vision literally depends on it. #EyeFacts #HumanBody #ScienceGeeks #CorneaHealth #VisionScience

The human cornea is a biological marvel — it’s the only part of the body that functions completely without blood vessels. Its transparency is essential for vision, allowing light to enter the eye without distortion. Instead of relying on blood, the cornea absorbs oxygen directly from the air, while nutrients are delivered through the tear film and the aqueous humor within the eye. This unique setup is what keeps our vision sharp, but it also comes with vulnerabilities. Contact lenses that restrict airflow can starve the cornea of oxygen, potentially leading to swelling, irritation, or even vision loss. That’s why giving your eyes time to “breathe” is more than a comfort — it’s a necessity for ocular health. #EyeFacts #Cornea #HumanBody #VisionScience #OcularHealth