: They offer a wide range of designer frames alongside their high-quality Kirkland Signature brand.

: While you need a membership to buy glasses, the eye exams—often performed by independent doctors—are available to non-members. 2. The Trendy Disruptor: Warby Parker

: For every pair sold, they distribute a pair to someone in need through their "Buy a Pair, Give a Pair" program. 3. The Budget King: Zenni Optical