Wondering why how Long Do Eyes Need to Rest impacts your daily choices? Find the full explanation with up-to-date information.

Hold your thumb 10 inches from your face and focus on it for 15 seconds. Alternatively, you can hold a near object with a letter on it to better engage your focusing system. After fifteen seconds, shift your gaze to a target 20 feet (6 meters) away, and again, hold your focus for 15 seconds.