Your eyes dry out faster than you realize 👁️ Seconds after you stop blinking, the tear film that protects your eye begins to break apart. This footage shows a tear break-up time test, where a safe fluorescent dye reveals how tears spread across the eye and how quickly that protective layer evaporates. That thin film isn’t just moisture. It keeps vision sharp, shields the cornea, and prevents irritation. Every blink resets the system by redistributing fresh tears. When blinking slows during scre