Is there an explanation for abnormal eye slants and asymmetrical eyes? (Photos)

Possible ptosis? Can anything be done? Thanks. Both of my eyes are different sizes and shapes. The right is bigger/more 'opened' while the left eye is smaller and slopes downward toward the outer corners. Also my eyelids aren't rounded. Following the slant of my upper lid, it curves up from my inner eye, then remains straight until it reaches the outer corner. My parents and siblings eyes do not look like this at all. I also have excess upper lid exposure, causing me to look quite tired and make my eyes look smaller than normal often.