Eyeglasses have become a fashion accessory. You should pick frames that you like, and be sure that they are also comfortable, safe, and sturdy. Lenses are available in safety glass, regular plastic, and polycarbonate. Glass lenses can be heavy and tend to slide down a kid's nose. Plastic or polycarbonate lenses are lighter and safer than glass, but they scratch easily.
Some kids choose to wear contact lenses instead of glasses.
If your ophthalmologist says you can wear either glasses or contact lenses, talk it over with your parents. Some kids don't want to be bothered with the responsibility of contact lenses, because it takes a few extra minutes each day to clean, disinfect, and store them properly. Some kids don't mind. So you say you're into sports, and you're bummed out because you just found out you need glasses. Just because you need glasses doesn't mean you have to stop playing sports.