Search Results for 'curvature'

$A male optician performs an eye test on a young African school boy in a classroom in Zonnebloem School, Cape Town, South Africa. He is using a diagnostic portable Rodenstock keratometer (opthalmometer) machine which is an auto refractor and measures the curvature of the cornea. The eye test is being provided by Mullers Opticians who volunteer their staff to visit schools and perform eye tests on all children in school grade 2.$

$A male optician looks closely at the eye of an African school boy on a screen of the Rodenstock keratometer (opthalmometer) machine in a classroom in Zonnebloem School, Cape Town, South Africa. The machine is an auto refractor and measures the curvature of the cornea. The eye test is being provided by Mullers Opticians who volunteer their staff to visit schools and perform eye tests on all children in school grade 2.$