Method and apparatus for a therapeutic treatment of nearsightedn

Details Method and apparatus for a therapeutic treatment of nearsightedn Method and apparatus for a therapeutic treatment of nearsightedn

1975-07-07

1976-10-19

Yasko, John D.

Surgery

Truss

Perineal

351 2, A61H 500

Patent

active

039865002

ABSTRACT:
A method for therapeutic treatment of nearsightedness by a repetition of focusing and staring alternatively at a distant object and a nearby object and a visual acuity chart used therefor of which sizes and locations of the break of the Landolt's ring can be made selectively changeable.

REFERENCES:
patent: 1811034 (1931-06-01), Updegrave
patent: 2024194 (1935-12-01), Wyckoff
patent: 2380508 (1945-07-01), Eaves

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