The common clinical causes of blinking are dry eyes, visual fatigue, inverted eyelashes, eye inflammation, allergies, tic disorders and so on. 1. Dry eyes: After using eyes for a long time, the eye regulation ability becomes poor and the moist ability of the eyes is insufficient, which can easily cause the eyes to become dry, so the frequency of blinking will be increased, in order to achieve the purpose of moistening the eyeballs and protecting the eyes. 2. Visual fatigue: Visual fatigue is more common, manifested by dry eyes, tearing, dizziness, etc., and in severe cases, blurred vision and frequent blinking. 3. Inverted eyelashes: Eyelashes are inverted and grow in the opposite direction of normal growth, toward the eyeball. It is easy to cause eye irritation and frequent blinking symptoms, and in serious cases, it will cause conjunctivitis, eye ulcers, eye congestion, etc. In addition, eye inflammation, allergies, children’s tics, etc. can also lead to eyes blinking all the time. If any of the above conditions exist, it is recommended to go to the hospital to clarify the cause of the condition and treat it aggressively.