I loved that one! "Checking the cell structure...." !!
But it's funny that you should mention Sleeper in connection with this thread, a Russian eye doctor developed radial keratotomy (a surgical treatment for nearsightedness that was the forerunner of today's Lasik surgery) when he saw that people depicted 200 years from now were wearing glasses, and he thought that was odd. I'm not ready to dismiss this as Russian snake oil quite yet.