The days of being called “four-eyes” are long gone. There are some new cool kids on the glasses scene.

Eyeglasses are an old invention — we can trace the simple but vital accessory back as early as the 13th century in Italy, according to the Museum of Vision. The true inventor of glasses is unknown, and early models were held by hand or balanced on noses by monks and scholars.

But we’ve come a long way in terms of eyewear technology (cough, Google Glass). Eyeglasses have evolved from their original function into totally new and innovative ones, and we don’t mean high-tech virtual reality glasses.

Below are some glasses with purposes that seek to do much more than just correcting your near or farsightedness.

1. Computer screen glasses

It’s rare for someone to not use a computer at least once a day, and some work on them for much longer. According to the Vision Council, 61% of adults experience digital eyestrain.

But now, there are prescription eyeglasses made specifically for those whose lives revolve around computers. Eyewear company Gunnar Optiks sells patented curved yellow lenses that wrap closely to the eye to increase humidity and reduce irritation, and to block both UV and blue light by replicating natural light.

A 2012 review from PCWorld states that the glasses made a noticeable difference in the wearer’s squinting on screens, as well as making text look sharper.

Since the glasses are really only good for screens, they made everything else have a strange tint and messed up the reviewer’s depth perception, which made him constantly switch between them and his normal glasses. According to Lifehacker, the entire need for such glasses is subjective on your personal experience with computers and eyestrain, and buying them without such a problem could, well, create one.

2. Orange-tinted glasses

When is the last time you look at an electronic screen on a given day? It’s most likely very close to when you go to sleep. The blue light from your laptop is known to suppress your body’s natural melatonin levels, keeping you up for longer than you wish.

In a 2014 study, orange-tinted glasses, which block out such blue light, were worn by a group of adolescent boys from 6 p.m. until their bedtime. The boys wearing the orange glasses were found to be more tired, and their saliva tested for more melatonin than the boys with clear glasses.

However, throwing on a pair of orange construction glasses isn’t going to magically turn you into Sleeping Beauty. Firstly, older adults might beless affected by blue light, and not all orange glasses are tinted enough to be effective or have been tested as sleep aids, according to The New York Times.

3. Migraine glasses

Suffer from migraines? Put on a pair of TheraSpecs.

Hart Shafer created this product for his wife who suffered from chronic migraines. The lightweight and slightly darker glasses are made to filter out fluorescent light by cupping your face tightly. A study from the American Migraine Association confirms that light can worsen migraines. A 2011 study from Michigan State University’s department of radiology found that tinted glasses reduced the hyper-activation of migraines.

However, using such glasses to reduce migraines is still a “work in progress,” and a former president of the American Headache Society stated that not everyone who suffers from migraines are triggered by visual stimuli. Regular sunglasses might be an easier solution.

4. Neurofeedback glasses

Your grandparents probably never imagined training their brains through a pair of glasses.

Narbis is seeking to make neurofeedback — the use of devices to monitor someone’s physiological functioning using sensors — available to the general public. The company is raising $150,000 through a Kickstarter campaign with the promise that with two weeks of wearing these glasses, people will improve their ability to get things done and think clearly. One pair requires a pledge of $295.

The data-gathering glasses, with three built-in sensors attached to your head and an an arm module that controls it, darkens its lens when the wearer loses focus, and then clears up when focus is regained.

Psychology Today, however, remains skeptical about its quality as a means of therapy — there are no official guidelines for accurate neurofeedback technique. A 2013 study found that neurofeedback did not improve ADHD in children anymore than the placebo treatment.

5. Glasses for dyslexia

Dyslexia is a lifelong reading condition characterized by difficulty in interpreting letters and words. ChromaGen is a pair of glasses aimed at correcting dyslexia’s symptoms of visual distortion, including the appearance of moving words and the feeling of headaches, nausea and fatigue.

The FDA has cleared these glasses, but hasn’t officially approved them. The lens aims at synchronizing both eyes by modifying the light’s wavelength. Studies for the glasses are few and limited; according to ABC News, a 1999 study reports that a majority of those with a reading disorder had a significant improvement with the lenses — however, this study was conducted ChromaGen’s creator.

6. Colorblindness glasses

Red-green colorblindness affects 8% of all men and 1 out of every 200 women, according to the organization Color Blind Awareness.

For $600, you can purchase a pair of sunglasses from EnChroma, which seeks to make colors brighter and more saturated by using multi-notch filters, which cut into the visible spectrum where the red and green overlap.Even though it has a neutral color balance, those who aren’t colorblind will still notice a boost in their vision.

In a New York Times article, the author is in awe after finally being able to see a rainbow. The glasses aren’t specifically designed for a computer or indoor use; the website explicitly states that it is not a cure for colorblindness, and is effective for about 80% of those colorblind.

Have something to add to this story? Share it in the comments.