To obtain the lenses to float on that little layer of tears, you need just position size and shape on the lenses.
You will need to refrain from doing this, and make sure to blink regularly - between 10-15 times a minute is ordinary. http://adoityourselflife.com/__media__/js/netsoltrademark.php?d=WWW.Colorpointpromo.com%2Fproduct%2Fleatherman-skeletool-rx%2F