Alumnos sosteniendo estructuras moleculares mientras están sentados en el aula durante la lección de química - Foto e imágenes de stock

Optician holding lenses for trial frame while colleague examining kid with visual field test

Female optometrist with lenses for trial frame while colleague examining kid with visual field test

Doctor in uniform and eyeglasses making injection in training pad near medical equipment and multiethnic students in white coats, emergency preparedness and skills development concept

Doctor waiting for female patient suffering from toothache in modern dental clinic

Handsome young dentist showing tablet to female client

Dentists checking patient teeth in modern clinic

Female ophthalmologist with lenses for trial frame while colleague examining kid with visual field test

Schoolboys with backpacks looking at camera near blackboard with educational icons