User blog comment:A-Lord-Over-Birds/Jeff the Killer - Debunked (and dismissed)/@comment-24101790-20140804233318

Additionally, the human eye needs the eyelid to moisten it and remove detritus. Without the lid, the person would scratch and tear the cornea with dust and small particles, and would be blind within an hour. So Jeff is apparently a master of proprioception (A Daredevil or Zatoichi if you will.) or he is constantly using visine on his eyes.