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Glossary of Ophthalmic Terms
beginning with letter D
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dioptometer Tweet Definition of dioptometer Like Definition of dioptometer on Facebook
noun 
  1. An instrument used to measure ocular refraction, in order to prescribe corrective lenses
     
diplopia Tweet Definition of diplopia Like Definition of diplopia on Facebook
noun 
  1. (pathology) An ophthalmology , ophthalmologic condition where one perceives two images; double vision.
     
divergence Tweet Definition of divergence Like Definition of divergence on Facebook
noun (wikipedia, divergence, divergence (operator))
  1. The degree to which two or more things diverge.
  2. (mathematics) the operator which maps a function F=(F1, ... Fn) from a n-dimensional vector space to itself to the number <math>\sum_{i=1}^n \frac{\partial F_i}{\partial x_i}</math>
     
double vision Tweet Definition of double vision Like Definition of double vision on Facebook
noun 
  1. a disorder of vision, (diplopia), in which a single object is seen as two
     

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