burning laser pen is a very high output

[laserqq]

http://www.kitlaser.com/can-be-loaded-w ... scope.html
Dr. Zheng told reporters, because the macaroni hole burning laser pointer blue, then there is always something to see the shadow. Although only the entire retina, a small part of the macula, but does not bear more than 90% of the central visual function, is the eye to collect the most informative and sensitive areas, people often see some of the details of the object, because these objects are how the macular center , If this place is broken, there will be "on the see, but I do not understand" the situation.
http://www.kitlaser.com/what-is-the-rea ... r-pen.html