My left eye is lower than my right. Is there any way to fix it, or is it genetics? (Photo)

When i was younger my eyes were not noticeable and at times didnt look uneven. But now that i have gotten older (im now 18) I have started to notice my eye has started to droop significantly from when i was smaller. It has gotten to a point where i can notice it when I'm taking pictures. I dont know if its just me or what.