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T.N.O. Test without Spectacles

T.N.O. Test without Spectacles
Product Code: SGR-233-TW
Price: £164.80 £82.40
Qty:        

Seven individual plates in booklet form. The first three plates are for screening purposes whilst the remaining plates enable the practioner to determine stereo acuity over a parallax range of 480 to 15 seconds of arc. Supplied without spectacles but with full instructions.