Now that summer is in full swing, it's the perfect time to upgrade your sunglasses. The latest lenses in prescription sunglasses take advantage of new technologies that enhance detail, while reducing glare. Prescription sunglasses can include single-vision lenses, bi-focals or even progressives.

A new pair of prescription sunglasses can make driving safer, not to mention more comfortable. Plus, you can customize your lenses and your frames to match your unique style and personality. Whether you're looking for the latest designer sunglass frames (like Ray-Bans), a timeless look from a prestigious designer (like Vint & Work), sunglasses for a specific sport, Warby Parker sunglasses that are perfect for everyday, or just cheap prescription sunglasses that won't drain your bank account, you're in luck.

Our team of in-house shopping experts have curated this roundup of the best places to shop for prescription sunglasses online. And many of these options will save you money. Meanwhile, when shopping for prescription eyeglasses, be sure to also check out our roundup of the best places to buy prescription glasses online .

What are the best prescription sunglasses you can get online? Whether you need single-vision, bi-focals, or progressive lenses, shopping online has serious benefits -- including savings. If you're looking for dedicated prescription sunglasses or eyewear with transition lenses that automatically darken in the sun, the largest selection can't be found in a brick-and-m.