Ablatable mask of polyoxyalkylene polymer and ionic polysacchari

Details Ablatable mask of polyoxyalkylene polymer and ionic polysacchari Ablatable mask of polyoxyalkylene polymer and ionic polysacchari

1990-10-26

1994-01-11

Webman, Edward

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

Implant or insert

424486, 424488, 5147721, 514777, 514779, 514781, 514944, 2523152, 2523153, 523121, 523137, 523179, 525405, 525916, 606 5, A61F 904, A61B 610, A61K 910, A61K 4744, A61K 4736, A61K 4738

Patent

active

052779114

ABSTRACT:
Balanced pH, thermo-irreversible polyoxyalkylene polymer and ionic polysaccharide gels are ideal materials for use as an ablatable mask or coating over the cornea of the eye of a mammal during excimer laser keratectomy. The depth and smoothness of the ablated corneal surface can be controlled by molding the desired surface curvature into the mask surface using a contact lens as a mold which is pressed onto the gel surface coating the cornea.

REFERENCES:
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patent: 4911926 (1990-03-01), Henry
patent: 4917886 (1990-04-01), Asche et al.
patent: 4948575 (1990-08-01), Cole et al.
Journal of Cataract Refractive surgery, vol. 14 May 1988, pp. 312-316.

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