英文關鍵字
closeup
correction
diagnostic
diopter
diopters
equipment
exam
examination
eye
eyeglasses
eyes
eyesight
frame
glasses
health
healthcare
instrument
instruments
lens
lenses
medical
medicine
ophthalmic
ophthalmology
optic
optical
optometric
optometry
professional
set
sight
test
testing
tool
tools
trial
vision