Photocured crosslinked-hyaluronic acid contact lens

Details Photocured crosslinked-hyaluronic acid contact lens Photocured crosslinked-hyaluronic acid contact lens

1996-09-13

1998-08-04

Merriam, Andrew E. C.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

351160H, 536 552, 52623823, 525 5423, 525 5432, G02C 704, C08F29010

Patent

active

057894620

ABSTRACT:
A photocured crosslinked-hyaluronic acid contact lens which comprises a photocured crosslinked-hyaluronic acid derivative produced by the formation of a crosslinked cyclobutane ring by light irradiation from mutual photoreactive crosslinking groups of a photoreactive hyaluronic acid derivative in which the photoreactive crosslinking groups are linked to hyaluronic acid, wherein the photoreactive crosslinking groups are introduced into functional groups of hyaluronic acid via a spacer group, and the contact lens has a water content of 80 to 99% and shape compatibility and tissue affinity for the eyeball. A process for preparing a photocured crosslinked-hyaluronic acid contact lens which comprises molding the photoreactive hyaluronic acid derivative into a shape that fits to the eyeball, and subsequently irradiating the shaped product with light to effect crosslinking between the mutual photoreactive crosslinking groups.

REFERENCES:
patent: 4223984 (1980-09-01), Miyata et al.
patent: 4260228 (1981-04-01), Miyata
patent: 4264155 (1981-04-01), Miyata
patent: 4532267 (1985-07-01), Allan
patent: 5143731 (1992-09-01), Viegas et al.
patent: 5277911 (1994-01-01), Viegas et al.
patent: 5376693 (1994-12-01), Viegas et al.
patent: 5462976 (1995-10-01), Matsuda et al.
patent: 5510418 (1996-04-01), Rhee et al.
patent: 5527925 (1996-06-01), Chabracek et al.
Hiroshi Nakao et al., Folia Opthalmologica Japonica, 45(5), 484-489 (1994).

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