The constant fluttering of the right eyelid is also known as right-sided blepharospasm or right-sided blepharospasm. The condition of constant fluttering is most likely caused by physiological factors, such as eyestrain, excessive eye use, mental tension or irregular work and rest, or lack of sleep, which may cause the right eyelid to flutter all the time. The situation of the right eyelid jumping all the time may also be caused by excessive smoking and drinking, which can be relieved by itself and can be improved after improving the physiological factors. If the unilateral right eyelid fluttering episodes are very frequent, you should also be alert to the possibility that the right eye has an impingement or an eyelid spasm caused by conjunctivitis or keratitis in the right eye. Even trauma to the eye or encephalitis, cerebrovascular lesions, or neuropathy may cause unilateral persistent eyelid fluttering.