英文關鍵字
adult
age
aged
attentively
bad
caucasian
concept
disease
disorder
elderly
examining
eye
eyesight
female
glass
grandmother
health
information
lady
leisure
lens
lifestyle
look
looking
magnification
magnifier
magnifying
mature
news
newspaper
old
optical
paper
pensioner
person
poor
problems
read
reading
research
retired
retirement
search
senior
sight
spectacles
vision
woman
wrinkled
years