... . Duochrome test charts to check single and binocular vision, and polarized test charts to check binocular vision and ocular muscle imbalance ... 0.03sProgram2 sets programs, each program contains up to 30 stepsLight source12V,50W Halogen LampAuto-off functionAfter 10 ... control, Polarized metal screen, halogen lamp, polarized glasses, fuses(2), batteries(2)Optional accessoriesFloor stand, wall ...