instrument for testing vision
Found on
http://phrontistery.info/o.html
• (n.) An instrument for measuring the limits of distincts vision in different individuals, and thus determiming the proper focal length of a lens for correcting imperfect sight.
Found on
http://thinkexist.com/dictionary/meaning/opsiometer/
Op`si·om'e·ter noun [ Greek ... sight +
-meter : confer French
opsiomètre .] An instrument for measuring the limits of distincts vision in different individuals, and thus determiming the proper focal length of a lens for correcting imperfect sight.
Brande & C. Found on
http://www.encyclo.co.uk/webster/O/26
No exact match found.
