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    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
    Male and female supervisors checking inventory in fiber optics factory — Stock Photo
    Male and female supervisors checking inventory in fiber optics factory
    Pair of vintage binoculars — Stock Photo
    Pair of vintage binoculars
    Superior view of human skull anatomy with annotations — Stock Photo
    Superior view of human skull anatomy with annotations
    Human eye anatomy — Stock Photo
    Human eye anatomy
    Male supervisor with clipboard checking inventory in fiber optics factory — Stock Photo
    Male supervisor with clipboard checking inventory in fiber optics factory
    Couple looking through the telescope. — Stock Photo
    Couple looking through the telescope.
    Human brain with visible optic nerve on white background, digital illustration. — Stock Photo
    Human brain with visible optic nerve on white background, digital illustration.
    Low angle of delighted female with eyeglasses and in blue denim jacket standing on white background and looking forward — Stock Photo
    Low angle of delighted female with eyeglasses and in blue denim jacket standing on white background and looking forward
    Portrait smiling female engineer in protective suit with paperwork in fiber optics research and testing laboratory — Stock Photo
    Portrait smiling female engineer in protective suit with paperwork in fiber optics research and testing laboratory
    Man looking through a telescope over the city. — Stock Photo
    Man looking through a telescope over the city.
    Orbital cut showing abducent nerve with ciliary ganglion and oculomotor nerve — Stock Photo
    Orbital cut showing abducent nerve with ciliary ganglion and oculomotor nerve
    Human eye anatomy — Stock Photo
    Human eye anatomy
    Sapphire, SEM — Stock Photo
    Sapphire, SEM
    Control panel of optical fiber wires installed in communications room for providing process and network access — Stock Photo
    Control panel of optical fiber wires installed in communications room for providing process and network access
    Contemporary professional microscope with powerful lenses placed on table in modern equipped lab — Stock Photo
    Contemporary professional microscope with powerful lenses placed on table in modern equipped lab
    Optometrist specialist hand picking up lenses from case with several equipment — Stock Photo
    Optometrist specialist hand picking up lenses from case with several equipment
    Happy black woman in optometry cabinet during study of the eyesight — Stock Photo
    Happy black woman in optometry cabinet during study of the eyesight
    Supramedial eye anatomy showing muscle innervation — Stock Photo
    Supramedial eye anatomy showing muscle innervation
    Male worker changing spools on machinery in fiber optics factory — Stock Photo
    Male worker changing spools on machinery in fiber optics factory
    Female worker looking through microscope — Stock Photo
    Female worker looking through microscope
    Male supervisor with clipboard at machinery control panel in fiber optics factory — Stock Photo
    Male supervisor with clipboard at machinery control panel in fiber optics factory
    Developing pig eye — Stock Photo
    Developing pig eye
    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
    Skull structure and eyes muscles — Stock Photo
    Skull structure and eyes muscles
    Woman in sunhat and scarf using binoculars on beach on New Jersey Shore, USA. — Stock Photo
    Woman in sunhat and scarf using binoculars on beach on New Jersey Shore, USA.
    Ethnic Asian female photographer shooting photo on professional photo camera on city street — Stock Photo
    Ethnic Asian female photographer shooting photo on professional photo camera on city street
    Aurora borealis over lake in boreal forest, Yellowknife environs, Northwest Territories, Canada — Stock Photo
    Aurora borealis over lake in boreal forest, Yellowknife environs, Northwest Territories, Canada
    3d illustration of optical light guide cables in different colours with open ends which shining brightly. — Stock Photo
    3d illustration of optical light guide cables in different colours with open ends which shining brightly.
    Optical equipment at industrial plant — Stock Photo
    Optical equipment at industrial plant
    Ethnic young Asian female photographer shooting photo on professional photo camera on city street — Stock Photo
    Ethnic young Asian female photographer shooting photo on professional photo camera on city street
    A Cable plugged into a laptop, close-up view — Stock Photo
    A Cable plugged into a laptop, close-up view
    Focused male worker using IR code scanner in fiber optics warehouse — Stock Photo
    Focused male worker using IR code scanner in fiber optics warehouse
    Bird watching binoculars. — Stock Photo
    Bird watching binoculars.
    Girl sitting on a tree — Stock Photo
    Girl sitting on a tree
    Lens of modern machine over Petri dish and manipulators during process of ovum fertilization in contemporary lab of clinic — Stock Photo
    Lens of modern machine over Petri dish and manipulators during process of ovum fertilization in contemporary lab of clinic
    Optometrist adjusting the retinograph during study of the eyesight of a happy black woman — Stock Photo
    Optometrist adjusting the retinograph during study of the eyesight of a happy black woman
    Anterior view of human skull anatomy with annotations — Stock Photo
    Anterior view of human skull anatomy with annotations
    Close-up of male customer wearing spectacles in optical store — Stock Photo
    Close-up of male customer wearing spectacles in optical store
    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
    53745 — Stock Photo
    53745
    Male and female managers with clipboard talking in fiber optics factory — Stock Photo
    Male and female managers with clipboard talking in fiber optics factory
    Mirror, chest of drawers, — Stock Photo
    Mirror, chest of drawers,
    Human eye anatomy — Stock Photo
    Human eye anatomy
    Superior view of human skull anatomy — Stock Photo
    Superior view of human skull anatomy
    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.
    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
    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
    Female worker looking through microscope — Stock Photo
    Female worker looking through microscope
    Human eye with muscles and circulatory system — Stock Photo
    Human eye with muscles and circulatory system
    Developing pig eye — Stock Photo
    Developing pig eye
    Male supervisors with clipboard examining fiber optic cable in factory — Stock Photo
    Male supervisors with clipboard examining fiber optic cable in factory
    Elevated view multicolor spools in fiber optics factory — Stock Photo
    Elevated view multicolor spools in fiber optics factory
    Young girl with binoculars. — Stock Photo
    Young girl with binoculars.
    Male supervisor and worker with clipboard walking along spools in fiber optics factory — Stock Photo
    Male supervisor and worker with clipboard walking along spools in fiber optics factory
    From above retro photo camera placed on metallic red circle on blue background — Stock Photo
    From above retro photo camera placed on metallic red circle on blue background
    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
    Black woman in optometry cabinet during study of the eyesight using a modern retinograph — Stock Photo
    Black woman in optometry cabinet during study of the eyesight using a modern retinograph
    Side view of woman in medical uniform and mask using modern machine to fertilize egg cell during work in laboratory of modern fertility clinic — Stock Photo
    Side view of woman in medical uniform and mask using modern machine to fertilize egg cell during work in laboratory of modern fertility clinic
    Male workers examining part in fiber optics factory — Stock Photo
    Male workers examining part in fiber optics factory