Effective Magnification Acuity Char

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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 a 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.

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