http://en.wikipedia.org/wiki/Phoropter phoropter Phoropters English phoropter phoropter English phoropter phoropter Phoropter phoropter (en) phoropter phoropter phoropter English phoropter phoropter phoropter phoropter phoropter bulky diagnostic machines Phoropter googoo-goggles phoropter English phoropter English phoropter phoropter phoropter phoropter Phoropter phoropter phoropter optometrist machine English http://en.wikipedia.org/wiki/Phoropter English phoropter phoropter bulky diagnostic machines