Consumer Reports tested blue light glasses costing $8, $40, and $53 and found that the $8 pair blocked the most amount of blue light.
Blue light-filtering lenses: useful for eye strain, sleep, & eye health? Here's the evidence - Evidently Cochrane
Do Blue-Light Glasses Help with Eyestrain?
Study finds blue light glasses don't offer the benefits originally touted - CBS Los Angeles
My Review of Cyxus Blue Light Filtering Glasses (How I Reduce Digital Eye Strain) - HubPages
Blue Light Glasses, Excel Optometry
Do computer glasses really work? - Quora
Do You Need Computer Glasses?
Do blue light blocking glasses work?
Are Blue-Light Blocking Glasses Effective?
Blue Light Blocking Glasses - Gamer Glasses, Filter Blue Light from LCD/LED Screen and Computer, Eyewear for Sleep and Helps Prevent Eye Strain & Headaches, for Men and Women
Can Blue Light Glasses Help Digital Eye Strain?