Solution uses Chlorin e6 ( Ce6 ) insulin and saline to enable night vision . A test subject was able to see in darkness 'for several hours ' Ability wore off the following day , with 'no noticeable effects ' after 20 days . Comment:
Solution uses Chlorin e6 ( Ce6 ) insulin and saline to enable night vision . A test subject was able to see in darkness 'for several hours ' Ability wore off the following day , with 'no noticeable effects ' after 20 days . But researchers warn of a high risk of cellular toxicity as a result of the solution and said chemicals should be 'handled with caution ’