Cardiff Low Vision TestThe Standard Cardiff Acuity Test includes three cards at each acuity level.
Cards can be used at either one meter or 1/2 meter. The Cardiff 4740CATR Standard Card Set includes 36 cards providing 24 acuity levels when used at both distances. Thus they cover acuity levels from 20/320 to 20/12.5 (6/96 to 6/3.75). Cardiff 4741 Low Vision Cardiff Acuity Set incorporates the 9 cards and therefore the combination covers 12 levels when used at both distances and extends acuity levels up to 20/640 (6/192). |
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