Instruments & Regulatory第 79 / 100 题
A lensmeter (focimeter) is used to measure what?
a.Pupillary distance
b.The power, axis, add, and optical center of a lens
c.Frame temple length
d.Corneal curvature
解析
The lensmeter reads a lens's sphere and cylinder power, cylinder axis, add power, optical center location, and any prism. It is the primary verification instrument in an optical lab and dispensary.
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