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    Optical photograph of constellation of Lyra and star Vega. — Stock Photo
    Optical photograph of constellation of Lyra and star Vega.
    Focused adult female doctor in sterile mask and ornamental medical cap looking through surgical microscope against crop coworker in hospital — Stock Photo
    Focused adult female doctor in sterile mask and ornamental medical cap looking through surgical microscope against crop coworker in hospital
    Elementary age boy in ophthalmology glasses reading visual chart while visual acuity test. — Stock Photo
    Elementary age boy in ophthalmology glasses reading visual chart while visual acuity test.
    Digital illustration of global network over planet Earth, world connectivity concept. — Stock Photo
    Digital illustration of global network over planet Earth, world connectivity concept.
    Ophthalmologist performing visual field testing at female patient. — Stock Photo
    Ophthalmologist performing visual field testing at female patient.
    Ant head. Coloured scanning electron micrograph (SEM) of the head of an ant (family Formicidae). showing its large compound eyes (blue) and jaws. Magnification: x50 when printed 10 centimetres wide. — Stock Photo
    Ant head. Coloured scanning electron micrograph (SEM) of the head of an ant (family Formicidae). showing its large compound eyes (blue) and jaws. Magnification: x50 when printed 10 centimetres wide.
    Cute young girl trying on glasses in an eyewear store — Stock Photo
    Cute young girl trying on glasses in an eyewear store
    Side view of unrecognizable young male medical photographer in sterile mask and uniform taking pictures on professional camera during surgery in modern operating room — Stock Photo
    Side view of unrecognizable young male medical photographer in sterile mask and uniform taking pictures on professional camera during surgery in modern operating room
    Ethnic young happy Asian female photographer shooting photo on professional photo camera on city street — Stock Photo
    Ethnic young happy Asian female photographer shooting photo on professional photo camera on city street
    Ophthalmologist examining boy eyes with slit lamp in clinic. — Stock Photo
    Ophthalmologist examining boy eyes with slit lamp in clinic.
    Female technician in white coat using microscope. — Stock Photo
    Female technician in white coat using microscope.
    Optician testing a boy's eyes with optometry devices — Stock Photo
    Optician testing a boy's eyes with optometry devices
    Side view of cheerful grandfather and granddaughter in glasses giving high five to each other in optical store — Stock Photo
    Side view of cheerful grandfather and granddaughter in glasses giving high five to each other in optical store
    Adult female doctor in sterile mask and ornamental medical cap looking through surgical microscope against crop coworker in hospital — Stock Photo
    Adult female doctor in sterile mask and ornamental medical cap looking through surgical microscope against crop coworker in hospital
    Side view of male dentistry student in uniform and gloves working with microscope while performing dental operation in modern classroom — Stock Photo
    Side view of male dentistry student in uniform and gloves working with microscope while performing dental operation in modern classroom
    Optometrist adjusting the optometry equipment during study of the eyesight of a black woman — Stock Photo
    Optometrist adjusting the optometry equipment during study of the eyesight of a black woman
    Optician testing a boy's eyes with optometry devices — Stock Photo
    Optician testing a boy's eyes with optometry devices
    Side view of professional optician in mask helping senior male choosing glasses while working in optical store — Stock Photo
    Side view of professional optician in mask helping senior male choosing glasses while working in optical store
    Broke photo camera and lens falling on soft couch with floral ornament in dark room — Stock Photo
    Broke photo camera and lens falling on soft couch with floral ornament in dark room
    Surgeons performing eyelid surgery to anonymous patient — Stock Photo
    Surgeons performing eyelid surgery to anonymous patient
    Optician with mirror helping content elderly male trying on eyeglasses in optical store — Stock Photo
    Optician with mirror helping content elderly male trying on eyeglasses in optical store
    Crop unrecognizable optician using phoropter for eyesight testing of senior male patient in clinic — Stock Photo
    Crop unrecognizable optician using phoropter for eyesight testing of senior male patient in clinic
    Snow-dusted spruce trees on a frigid winter morning in Interior Alaska; Alaska, United States of America — Stock Photo
    Snow-dusted spruce trees on a frigid winter morning in Interior Alaska; Alaska, United States of America
    Female worker looking through microscope — Stock Photo
    Female worker looking through microscope
    Optometrist using an ophthalmoscope during study of the eyesight of a black woman — Stock Photo
    Optometrist using an ophthalmoscope during study of the eyesight of a black woman
    View on high-tech optical equipment — Stock Photo
    View on high-tech optical equipment
    3D motion and deformation sensor in modern industrial facility. — Stock Photo
    3D motion and deformation sensor in modern industrial facility.
    Surgeons performing eyelid surgery to anonymous patient — Stock Photo
    Surgeons performing eyelid surgery to anonymous patient
    Focused adult female doctor in sterile mask and ornamental medical cap looking through surgical microscope against crop coworker in hospital — Stock Photo
    Focused adult female doctor in sterile mask and ornamental medical cap looking through surgical microscope against crop coworker in hospital
    Elementary age boy undergoing sight examination with slit lamp in ophthalmology clinic. — Stock Photo
    Elementary age boy undergoing sight examination with slit lamp in ophthalmology clinic.
    Two boys camping in forest — Stock Photo
    Two boys camping in forest
    Side view of teenage girl trying on glasses while standing in optical store with grandfather and optician and looking in mirror — Stock Photo
    Side view of teenage girl trying on glasses while standing in optical store with grandfather and optician and looking in mirror
    Optician testing a boy's eyes with optometry devices — Stock Photo
    Optician testing a boy's eyes with optometry devices
    Young girl with binoculars. — Stock Photo
    Young girl with binoculars.
    Low angle of professional contemporary optical equipment against clear night sky with Milky Way among much of bright stars — Stock Photo
    Low angle of professional contemporary optical equipment against clear night sky with Milky Way among much of bright stars
    From above vintage photo cameras arranged in order forming seamless pattern on bright blue background — Stock Photo
    From above vintage photo cameras arranged in order forming seamless pattern on bright blue background
    Happy preteen girl in white plastic stereoscopic glasses with red and blue lens smiling at camera while watching 3d graphic film with pleasure against turquoise background in modern studio — Stock Photo
    Happy preteen girl in white plastic stereoscopic glasses with red and blue lens smiling at camera while watching 3d graphic film with pleasure against turquoise background in modern studio
    Close-up of hand taking lens for eye test from rack. — Stock Photo
    Close-up of hand taking lens for eye test from rack.
    Female worker looking through microscope — Stock Photo
    Female worker looking through microscope
    Green northern lights in dark night sky under Dempster Highway, Yukon, Canada. — Stock Photo
    Green northern lights in dark night sky under Dempster Highway, Yukon, Canada.
    Crop unrecognizable female photographer in denim jacket and jeans standing with vintage photo camera — Stock Photo
    Crop unrecognizable female photographer in denim jacket and jeans standing with vintage photo camera
    Cute young boy trying on glasses in an eyewear store — Stock Photo
    Cute young boy trying on glasses in an eyewear store
    Ophthalmologist examining patient with slit lamp and magnifying lens. — Stock Photo
    Ophthalmologist examining patient with slit lamp and magnifying lens.
    Optometrist adjusting the optometry equipment during study of the eyesight of a black woman — Stock Photo
    Optometrist adjusting the optometry equipment during study of the eyesight of a black woman
    Little boy holding a magnifying glass observation — Stock Photo
    Little boy holding a magnifying glass observation
    Back view elderly bearded male in trendy outfit standing with modern stylish sunglasses in optical shop — Stock Photo
    Back view elderly bearded male in trendy outfit standing with modern stylish sunglasses in optical shop
    Optician testing a boy's eyes with optometry devices — Stock Photo
    Optician testing a boy's eyes with optometry devices
    Analog camera on wooden table — Stock Photo
    Analog camera on wooden table
    Optician testing a boy's eyes with optometry devices — Stock Photo
    Optician testing a boy's eyes with optometry devices
    Optician testing a boy's eyes with optometry devices — Stock Photo
    Optician testing a boy's eyes with optometry devices
    Light microscope on laboratory bench. — Stock Photo
    Light microscope on laboratory bench.
    Ant head. Coloured scanning electron micrograph (SEM) of the head of an ant (family Formicidae). showing its large compound eyes (red) and jaws. Magnification: x50 when printed 10 centimetres wide. — Stock Photo
    Ant head. Coloured scanning electron micrograph (SEM) of the head of an ant (family Formicidae). showing its large compound eyes (red) and jaws. Magnification: x50 when printed 10 centimetres wide.
    Optometrist adjusting the optometry equipment during study of the eyesight of a black woman — Stock Photo
    Optometrist adjusting the optometry equipment during study of the eyesight of a black woman
    Woman taking picture with camera — Stock Photo
    Woman taking picture with camera
    Optician testing a boy's eyes with optometry devices — Stock Photo
    Optician testing a boy's eyes with optometry devices
    Optometrist adjusting the retinograph during study of the eyesight of a black woman — Stock Photo
    Optometrist adjusting the retinograph during study of the eyesight of a black woman
    Portrait of happy preteen girl in white plastic stereoscopic glasses with red and blue lens smiling away while watching 3d graphic film with pleasure against turquoise background in modern studio — Stock Photo
    Portrait of happy preteen girl in white plastic stereoscopic glasses with red and blue lens smiling away while watching 3d graphic film with pleasure against turquoise background in modern studio
    Optometrist adjusting the optometry equipment during study of the eyesight of a black woman — Stock Photo
    Optometrist adjusting the optometry equipment during study of the eyesight of a black woman
    Female photographer looking at filmstrip with photos — Stock Photo
    Female photographer looking at filmstrip with photos
    Shocked surprised preteen boy with mouth opened in special glasses with stereoscopic blue and red lens looking away and enjoying 3d graphic video against turquoise background in modern studio — Stock Photo
    Shocked surprised preteen boy with mouth opened in special glasses with stereoscopic blue and red lens looking away and enjoying 3d graphic video against turquoise background in modern studio