| 释义 |
oph·thal·mom·e·ter
\ˌ ̷ ̷ˌthalˈmäməd.ə(r), -_thəl-\ noun
Etymology: International Scientific Vocabulary ophthalm- + -meter
: an instrument for measuring the eye; specifically : an instrument for measuring the size of a reflected image on the convex surface of the cornea of the eye by which its principal meridians and the presence and amount of astigmatism may be determined |