Reviewed in the united states on october 9 2018.
													
																	Cyxus blue light blocking computer glasses review. 
									
	
		
	
																	These work because the light source has uv light. 
																	5 0 out of 5 stars they do a great job of blocking blue light and are very comfortable reviewed in the united states on february 24 2017 color. 
																	8084t01 black verified purchase after a month of heavy use i ve concluded these glasses are well worth it for any person who spends countless hours behind a computer. 
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																	They provide a blue colored light and a test strip to test the glasses with. 
																	These block at best uv light. 
																	When they arrived the company included a little blue light with a blue light sensitive credit card sized tester. 
																	Screens don t have uv light that is why when you hold the test strip to the screen that you look at nothing happens. 
															
													
									
	
		
	
																	I couldn t wear them for long periods of time because they hurt my head because they were so tight and the arms didn t even make it behind my ears. 
																	Read honest and unbiased product reviews from our users. 
																	These glasses are pointless unless you are in the sun looking for uv light protection.