LANG-STEREOTEST by Barrier Free Access (HK) Limited Price US$POA Supplier/s Barrier Free Access (HK) Limited Supplier Code 50102 (IAPB) Country of Origin USA Request a quote Product Description LANG-STEREOTEST II (50102) Product Features Star is visible monocularly Both test use random dots and cylinder gratings so no glasses are needed and eye movements are easily observed. Share: