We wanted to find out if buying glasses online is a good idea for younger children and, if so, which online retailer has the lowest prices. Are online prescription eyeglasses the same as what you get in a retail store? Each store has its own refund and return policies but generally, what you don’t get ordering glasses online is the custom fitting. “The kids’ glasses are probably easier online than the adult glasses,” Feldman said, assuming adults are more likely to have a complicated prescription that requires bifocals or progressive lenses. “Because if they don’t fit right, they’re gonna be off in a minute and they’re gonna fall off and they’re gonna break, and they’re kids being kids,” Feldman explained.