Why are my eyelids so big ? Possible ptosis on both eyes? (Photo)

As I have gotten older , I have noticed that my eyelids get bigger and seem to overpower my eye . If they become bigger will this cause vision issues ? I went to my optometrist and they concluded that my eyesight got worse . Are these two factors correlated ? My eyelashes also seem straighter and it is hard to curl them or even apply mascara . The left eye corner droops and the lashes on that end fall down immediately. What can I do about this ?