Grown-up noses and cheeks are proportioned differently than children's, and spectacle frames need to reflect this in order to fit properly. Experienced children's opticians keep these differences in mind when assisting you in choosing eyewear. Remember that your child is undergoing rapid growth and an improperly fit frame can cause alterations in developing bone, breathing problems and even create further damage in the vision problem the glasses are supposed to correct. Lenses made of polycarbonate, a very strong plastic are a must. Regular plastic and glass lenses can shatter into shards that can lacerate delicate eye tissue.
Polycarbonate lenses are more shatter resistant and therefore much safer glasses.
Many times the biggest initial concern of a parent is whether their child will wear the glasses once they've received them. If a child sees better out of the glasses, at least up to the age of ten, there probably won't be any problem, even with toddlers. If you are having trouble getting your child to keep their glasses on, first check to see if the glasses fit properly. Children tend not to complain about sore ears and noses as an adult might, so check for redness behind the ears or on the sides of the nose to be sure the frames aren't rubbing uncomfortably or sliding around. Make sure the glasses aren't falling down on the nose, which can cause distorted and decreased vision.