Original sentence: EnChroma lenses are glasses which are designed to alleviate symptoms of red–green color blindness.Initial claims in excess of this by the manufacturer have been criticised and characterized as marketing hype.Studies have shown that while the lenses alter the perception of already perceived colors, they do not restore normal color vision
Edited sentence: ", as follows: "The answer is that they can’t".And discussing the manufacturer's claims for the lenses vs the science regarding color deficient vision, the report answered the question, "How could they possibly work.EnChroma lenses are glasses which are claimed to improve color vision in people who have forms of red–green color blindness.Studies have shown that while the lenses alter the perception of already perceived colors, they do not restore normal color vision, and claims in excess of this by the manufacturer have been characterized as marketing hype.The article concluded that "the magic glasses did not deliver on the promises"