I need a pair of glasses and contacts?!

I need a pair of glasses and contacts?

i am going to high school and i have terrible sight and i dont want to sit in the front of the class how do i convince my mom that i need a new pair (the other ones i had since 5th grade), because in the past i have lost my glass, now i am a bit more "mature", she also thinks contacts will scartch my cornea, how do i convince her other wise?

tell her u want acuve advane and tell her you eyesight is getting worse so you need a new eye exam and new glasses..I have contacts adn it you get the right products and your contact will be fine