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According to the World Health Organization, at least 1 billion people globally have a vision impairment that could be prevented or still needs to be addressed. From getting an eye test to educating yourself on eye health, there's a lot you can do to care for your sight.

We know how expensive eyeglass shopping can be, but it doesn't need to cost you a fortune. There are plenty of affordable options that can even be purchased from the comfort of your home — as long as you know what to look for when shopping for glasses online.

Ahead, we've picked out the most affordable and trendy eyeglasses for women, men and children — all $100 and under.

Spending too much screen time? Try these stylish blue light blocking glasses to relieve eye fatigue, strain and headaches.

Clear frames let your features stand out while this cat-eye silhouette brings attention to your eyes.

Designed for gamers, the spike glasses are designed to look and feel great during long play sessions. A metal frame with comfortable nose pads that you can rock in the digital gaming world or real world.

ALSO SEE: Here's how to correctly shop for glasses online - and where to buy them in Canada

A vintage style geek-chic pair for both women and men. The semi-rimless design is on point with current trends, minimalist and comfortable so you can wear them all day long.

A classy cat-eye frame that never goes out of style. This style is compatible with progressive lenses or sunglasses too.

Designed for boys and girls from ages 3 to 10, these blue light glasses protect their sight, reduce headaches and migraines from fatigue that can occur from long screen times as well as ensure UV protection.

MESquad has the perfect glasses you can customize for your child or they can customize themselves. These are the world's first customizable eye glasses for kids that you can choose your own front, hinges, and temples however you want to get the perfect frame for your personality.

A stand out pair of aviators that are sturdy, lightweight and never out of style. Minimal metal is used to give this pair of glasses a sleek look.

You can't go wrong with a classic round frame. These are the perfect round silhouette with a black and silver finish that works for everyone.

If you're looking to make a statement, these wide round glasses with a full blue-green rim are the ones for you. A retro yet stylish design all for a great price.

Retro-inspired cat-eye glasses in tortoise shade that look elegant and classy. Flattering for every skin tone, but four different colours are available for an amazing price.

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