I am trying to help , plz don t panic about CVirus it is still a virus , the important is to see much more from where is a danger come , it s coming from a climate change .... and eyes and vision as only we experts know are what we see that s how s ...thank you facebook and godd bless us all @@-@@
Pilots, Astronauts, Drivers, Divers, Alpinists, people who have need for speed and reflexes, they need a speed,eye exercises, in space low gravity , light is not so good, then , color vision, 3D stereo vision and deep perception vision eyes emetropics ****