Effective Magnification Acuity Chart777500
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The EMAG Chart allows for easy determination of the starting dioptric power needed to read standard size print. The chart is used at 10" (25 cm) with a +4.00 add and gives the doctor or technician an uncomplicated approach for incorporating Low Vision in their practice. Acuity lines range from 20/400 to newspaper size print. The chart comes with instructions and has an attached measuring cord that ensures proper testing distance.
Dimensions: 15.5" x 12" (39.37 cm x 30.48 cm).Click here for the 777500 Guide.