Large and small eyes are clinically referred to as upper eyelid asymmetry, which can be caused by congenital developmental abnormalities or by acquired injuries that result in abnormalities in the upper eyelid muscles of the eye, causing the eyes to appear one large and one small from the outside. conservative treatment first. If the results are minimal, surgery is needed to correct the problem. need to undergo upper face lift shortening to cut away the excess muscle and achieve a lift of the upper eyelid, or opt for a combined fascial sheath correction. When the upper eyelid is essentially in a state of muscle weakness and the results are poor after transcranial levator shortening, or if recurrence occurs, broad fascial suspension or frontalis flap suspension may be an option. In addition, if the condition is due to a lesion within the eye, or if there is a hemangioma or malignant tumor, the size of the eye will improve only after active treatment of the original disease.