Eyeglasses have become more than just a way to see clearly. Stylish frames have made them a go-to statement piece, one that often completes an outfit. Even those with perfect vision have a few pairs that they can slip on to add some edge to their OOTDs.

But now that we spend so many hours a day in front of a computer or a smartphone—there are more reasons why you should wear glasses.

1. They help prevent headaches.

Your computer and gadget screens emit significant amounts of blue light, which is the highest energy wavelength of visible light. Countless clinical studies show how blue light can massively trigger headaches. Researchers have suggested that there is a specific neural pathway from the eyes to the brain that ultimately causes blue light to worsen a headache or migraine pain. It can even exacerbate migraine symptoms, such as light sensitivity, dizziness, and nausea.

2. They help prevent digital eye strain.

High-energy blue light waves can lead to eye fatigue and soreness, both of which are symptoms of computer vision syndrome and eye strain. In addition, staring into a digital screen for long periods of time can worsen symptoms of dry eye.

3. They’ll help you sleep better at night.

Our bodies associate blue light with daytime, so exposure to blue light when you’re trying to go to bed makes it harder to fall asleep. Researchers also believe that blue light suppresses melatonin production and prevents the body’s temperature from dropping, both of which are necessary for the body’s natural progression into sleep.

4. They help prevent your eyes from degenerating.

Continued exposure to blue light energy over time could damage light-sensitive cells in the retina, and lead to problems such as blurred vision.  

Glasses can do a lot more than help you see clearly or elevate an ensemble. Frames outfitted with Lutein protective lenses can also help protect your eyes from the harmful effects of blue light, as well as UV rays and radiation. These special lenses are made from a material that contains lutein, a vitamin and carotenoid pigment that’s naturally found in healthy retinas.

Originally manufactured in Japan by Tokai Optical, Lutein protective lenses help filter UV rays and blue light energy. You can get them exclusively (along with some stylish frames to go with them) at Vision Express, an optical store that carries brands like Ray-Ban, Prada, Dolce & Gabbana, Burberry, Coach, Guess and more. Their branches can be found nationwide.