adult
adults only
analyzing
business
business person
businesswoman
caucasian ethnicity
chemistry
closeup
color image
discovery
education
examining
expertise
eyeglasses
eyesight
females
glass material
group of people
healthcare and medicine
holding
human hand
ideas
indoors
laboratory
learning
lifestyles
looking
men
mirror
occupation
one person
optometrist
people
planning
professional occupation
reflection
research
science
scientific experiment
scientist
selective focus
student
teamwork
technology
women
working
young adult
young women