FIELD: medicine, in particular, ophthalmology, more particular, correction of vision defects.
SUBSTANCE: spectacles have rim and holders. Two cylindrical black mat rods are built into each rim to provide for diffraction of light rays. Cylindrical rods are arranged in single plane and in parallel with one above. Diameter of cylindrical rods is 3.0-3.5 mm and distance between rods is 1.5-2.0 mm. In order to correct sharpness of image of objects positioned at different distances from eyes, length of spectacles portions to be arranged behind ears is selected so as to provide distance of 12.0-25.0 mm between rods and pupils.
EFFECT: increased efficiency, intensified and painless correction of vision defects.
1 dwg
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Authors
Dates
2005-07-27—Published
2004-05-11—Filed