I used the red LEDs directly over my right and left eyes. I took off the 
array when it got too hot which takes a few min. The effect is everything is 
sharper and brighter in these 40yr old eyes. My wife reports the same with her 
eyes as well. I lost my fear of trying this when I read some testimonies about 
people staring into the sun for short periods and having there vision actually 
improve. There is a story of a sadistic Korean doctor who forced American POWs 
to stare at the sun for 10 hours a day during the Korean war.. If they blinked 
they were threatened with death. They all had better eyesight after a year 
and only suffered from headaches and neck aches. Some no longer needed there 
glasses. I also read the Univ, of Wisconsin Med school (Dr Harry Whelan who 
also 
works for the Gov. and NASA) is using LEDs in research testing to heal the 
eyes of blinded mice using 670nm red LEDs. I would NOT put a red laser in my 
eyes 
as the beam is far more concentrated and supposedly you can overdose with 
lasers but not LEDs. After a while we may hear of some people using lasers for 
eyesight improvement but I am not ready to try that yet. 
Steve