optometer
/op-tom-i-ter/US // ɒpˈtɒm ɪ tər //UK // (ɒpˈtɒmɪtə) //
视力计,验光仪,视力表,光度计
Definitions
n.名词 noun
- 1
- : any of various instruments for measuring the refractive error of an eye.
Examples
Test with optometer, and in reporting use the number on the stem preceded by F for far-sightedness, and N for near-sightedness.
In using the optometer, find the place where vision of the dots is the easiest and most distinct.
Now, the Javal-Bull optometer permits of a quick determination of the value of the amplitude of accommodation in dioptries.
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