低视力斯隆字母颠倒图
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Low Vision Reversed Sloan Letter Chart
Adult Low vision reversed sloan letter chart for ESV1018 illuminated cabinet. These big letters make it easy to test for distance vision ambiguity. Line sizes range from 20/400 to 20/160 (6/120 to 6/48), 0.05 to 0.125.
规格
800742
品牌
GOOD-LITE(美国）
