My eye doctor said the jury isn’t out study-wise but since they’re cheap and can’t hurt she suggested them alongside turning on device “nighttime” mode and limiting screen time. The ones I have were $7 and have UV blocking lenses and work as readers for when I wear my contacts as well as well. I wouldn’t have spent any more on fancy ones.

If you’re at your computer for long periods of time don’t wear your glasses or it could cause strain if they are meant for distance, that alone could help with eye strain/headaches.