A Lensmeter a iʻole lensometer,ʻikeʻiaʻo ia he mea fooimeter a iʻole vertometer, he mea hana ophthalmic. Ua hoʻohana nuiʻia e OPTometrists a me nā opticians e hōʻoia i ka papa kuhikuhi kūpono i kahi mau maka o nā maka, a e hōʻoia pono i nā lekiō kūponoʻole.