Method of making artificial intraocular lenses with holes

Details Method of making artificial intraocular lenses with holes Method of making artificial intraocular lenses with holes

1976-02-10

1977-06-07

Bashore, S. Leon

Glass manufacturing

Processes

With destruction or delamination of transitory attached or...

65 31, 65 61, 65DIG7, C03C 1908, C03C 1500

Patent

active

040280829

ABSTRACT:
Making perforate optical sections (lenses) of pseudophakoi with avoidance of drilling operations and adversities thereof. Lens material is drawn with embedded acid soluble columns corresponding in diametral size and relative juxtaposition to the size and spaced locations of holes needed in a lens and the columns are etched away prior to or following final edging and surface finishing of the lens. Making multiple lens preforms is contemplated.

REFERENCES:
patent: 988424 (1911-04-01), Woegerer
patent: 2619438 (1952-11-01), Varian et al.
patent: 2752731 (1956-07-01), Altosaar
patent: 2825184 (1958-03-01), Charlotte
patent: 3244776 (1966-04-01), Sheldon
patent: 3275428 (1966-09-01), Siegmund
patent: 3925825 (1975-12-01), Richards et al.

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