Method for the manufacture of contact lenses, and contact...

Details Method for the manufacture of contact lenses, and contact... Method for the manufacture of contact lenses, and contact...

G - Physics

02

C

18/106, 342/3, 8

G02C 7/04 (2006.01) B23K 26/08 (2006.01) B24B 13/04 (2006.01) B24B 13/06 (2006.01) B29C 33/42 (2006.01) B29D 11/00 (2006.01)

Patent

CA 2034708

V7-18460/A/TIT 27 Method for the manufacture of contact lenses, and contact lens production system Abstract A method for the manufacture of contact lenses, especially individually fitted contact lenses, and a contact lens production system therefor is described, wherein the topography of the surface of the eye is measured three-dimensionally, the geometry of the rear face of the lens is determined so as to fit the topography measured, the optical effect of a lachrymal lens which is formed between the rear face of the lens and the surface of the eye is determined, the geometry of the front face of the lens is determined taking into account the optical effect of the lachrymal lens and the sight correction to be achieved, and the data so obtained for the lens geometry of the front and rear faces of the lens are stored and transferred to a control arrangement for the manufacture of the lens in a machine tool. (Fig. 1)

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