Do you have high eye number? Why does it keeps increasing?

Anonymous
When I was 6 I got a eye number of -0.25 but didn't wear glasses because I was able to see most of the things. From then on it's continuously increasing. I am 18 now and I have high eye number of -9.75. I'd this something related to heredity? My twin sister has recently got a eye number of -1.75. Why my eye number is so high? My parents don't have, my grandparents had no eye number till 102 age. Is this because I study too much or any other thing? I have always been a scholar and 1st ranker. Is this same with you?
Do you have high eye number? Why does it keeps increasing?
6 Opinion