One high eye and one low eye may be due to displacement of the eyeball, which can be left untreated if there are no uncomfortable symptoms; it may also be due to strabismus, which can be corrected surgically; or it may be due to ptosis, which usually requires surgical correction as well. If the eye displacement is congenital and there are no uncomfortable symptoms, it can be left untreated and regular observation of binocular vision is sufficient. If strabismus is the cause of the eyes looking one high and one low, it needs to be corrected aggressively with surgery. This can be done by surgically altering the starting and stopping points of the extraocular muscles and adjusting the position of the eyes. Ptosis may also be the cause of the eyes being high and low. It is important to seek medical attention to find and treat the cause of the ptosis, and to correct it surgically if you feel it is affecting your appearance or normal vision. If your eyes are high and low, and if they are noticeable or uncomfortable, it is advisable to go to the hospital and have your eyes checked by a doctor.