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Health care
Of or pertaining to the prevention and treatment of illness, and the preservation of physical and mental well-being, through the services provided by medical professionals.
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Add a new termContributors in Health care
Health care > Optometry 
dioptric power
Eyewear; Optometry
General term comprising the focal power and the prismatic power of a spectacle lens.
direct ophthalmoscope
Eyewear; Optometry
An ophthalmoscope which provides an illuminating system, a viewing system and corrective lenses which allow the observer to view the patient's eye directly, that is without the ...
dispersion
Eyewear; Optometry
Phenomenon of change in the velocity of propagation of monochromatic radiation in a medium as a function of the frequency of the radiation.
distance cap
Eyewear; Optometry
Negative lens placed in front of a near vision telescope/ telemicroscope objective to adapt the device for viewing a distant object.
cylinder axis
Eyewear; Optometry
Direction of that principal meridian of a spectacle lens whose vertex power is chosen for reference.
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