FIELD: medicine.
SUBSTANCE: invention relates to ophthalmology. Point card holder contains metal billet, ends of which are bent at an angle in form of a triangle. At the same time sides and top are directed downwards, and triangle base is distance between angle of bend and point of connection with frame of holder. Frame of the holder is configured to move along the horizontal plane until parallel alignment of the geometrical center of the frame of the holder with the center of the pupil at mechanical compression of sides of the triangle.
EFFECT: use of this invention allows adjusting the fit of the holder in the horizontal plane and leveling the symmetry of the part of the holder with asymmetry of the position of the patient's eyes.
1 cl, 2 dwg
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Authors
Dates
2019-11-29—Published
2019-01-28—Filed