What causes uneven eye size?

The phenomenon of uneven eye size may be caused by various factors. Congenital genetic factors are an important cause; when the two eye sockets develop unevenly during growth and development, it can result in eyes of different sizes. Eyelid fissure issues are also a common factor—if one eye has double eyelids while the other has single eyelids, this can create the appearance of asymmetrical eyes. Eye diseases may also lead to uneven eye size, such as hyperthyroidism, congenital glaucoma, intraocular tumors, unilateral ptosis (drooping upper eyelid), and orbital inflammatory pseudotumor. For symptoms of uneven eye size, it is recommended to seek medical attention promptly, undergo professional examinations to determine the underlying cause, and receive appropriate treatment under medical guidance. Please note that the above are only potential causes, and individual circumstances may vary. Therefore, it is best to consult a doctor at a professional medical institution for an accurate diagnosis and personalized treatment recommendations.