Instructions Use as a hardcopy or on the Computer screen at a distance of 3050 cm under normal desktop working light conditions Passing grade min 20 correct readings required 2 6 4 32 5 ID: 426788
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Eye Examination: Shades of Gray Instructions: Use as a hardcopy or on the Computer screen at a distance of 30-50 cm under normal desktop working light conditions. Passing grade: min. 20 correct readings required. 2 6 4 32 5 5 64 32 542 64 46 developed by Dr. Kölbl of FMTÜVBV, Langemarckstr. 20, 45141 Essen, Germany, Tel. +49-201-8900900, www.onetb.com This chart may