Periodic need for tightening or other adjustment. No weight and resulting discomfort. No frame constantly slipping down your nose. Glasses fog up with changes in temperature. Contacts don't fog up.
Glasses are a distraction during games and sports.
No distractions, which make contact lenses a favorite among athletes. Fashionable and inexpensive non-prescription sunglasses are not an option if you wear eyeglasses. A whole wardrobe of fashionable, functional, affordable sunglasses is available to contact lens wearers. Glasses need to complement your outfit. For instance, casual frames may not suit evening attire.