Grafco® Hanging Eye Chart
# de catalogue 470023-564
Fournisseur: Graham-Field
Spécifications
- Length:56 cm
- Width:27 cm
- Description:Eye Test Chart
- Cat. no.:470023-564
- Supplier No.:1240
Spécifications
A propos de cet article
Same test used by optometrists to determine visual acuity.
- Non-reflective matte finish
- 20×11" size with hanging eyelet
- 20' distance
Chart features non-reflective plastic, matte finish with green and red color bars. The Snellen eye chart is the familiar chart with the big letter or symbol at the top and progressively smaller letters at the bottom of the chart down to 20/20 or better. This is a chart for measuring visual acuity at a distance, in other words, how well you can see things that are far away.
Customers Who Bought This Also Bought
Ward's® Live <i>Drosophila melanogaster</i> - Chromosome II Mutants
Fournisseur: Ward's Science
$15.70