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The fact that the human nose, as a rule, is not situated in the centre of the face, I have never seen stated in any medical journal, or any text-book on ophthalmology that has come under my notice. The importance of this fact to the oculist can scarcely be overestimated, when considered in connection with the adjustment of spectacles for correcting errors of refraction. This fact may have been stated before, but if so, it is strange that it has not been incorporated into every text-book on ophthalmology which deals with the errors of refraction. Every one of these works insists strenuously on the necessity of adjusting glasses accurately to the face, so that the optical centre of lenses shall stand exactly in front of the centre of the pupils, unless for certain reasons the lenses are decentred to get a prismatic effect.
In measuring the face for the adjustment
SIMONTON AC. THE HUMAN NOSE NOT IN THE CENTRE OF THE FACE. ITS IMPORTANCE IN THE ADJUSTMENT OF SPECTACLES. JAMA. 1892;XVIII(3):63–64. doi:10.1001/jama.1892.02411070003001a
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