Cleaning and liquid contact with solids – Processes – Including work heating or contact with combustion products
Patent
1992-01-03
1993-05-11
Morris, Theodore
Cleaning and liquid contact with solids
Processes
Including work heating or contact with combustion products
134 42, 252DIG12, B08B 310, B08B 700
Patent
active
052097838
ABSTRACT:
A method for removing yellow contact lens discoloration involves immersing yellow colored contact lenses in a solution including a proteolytic enzyme and a reducing agent and then heating the solution for a time and at a temperature sufficient to remove substantially all yellow contact lens discoloration. The method also functions to simultaneously clean, disinfect and remove yellow discoloration from a contact lens. The lens is immersed in an aqueous solution including an effective amount of a thiol and an enzyme, and the solution is heated above ambient temperature for a time and at a temperature sufficient to remove substantially all yellow contact lens discoloration and contact lens protein accretions and to disinfect the lens. Preferably the solution is heated to a maximum temperature in a range of approximately 80.degree. C. to approximately 90.degree. C.
REFERENCES:
patent: Re32672 (1988-05-01), Huth et al.
patent: 4285738 (1981-08-01), Ogata
patent: 4614549 (1986-09-01), Ogunbiyi et al.
patent: 4690773 (1987-09-01), Ogunbiyi et al.
patent: 4863627 (1989-09-01), Davies et al.
"Protein: A Sourse of Lense Discoloration", Ralph P. Stone, Mary F. Mowrey-McKee and Paul Kreutzer, Sep. 1984.
"Identification and Management of Soft Contact Lense Deposits"by Patrick J. Caroline, Ocular Therapy, 1985-vol. 2.
"Clinical Experiences with Chemical Va. Thermal Disinfection of Hydrophilic Lenses", by Gerald L. Feldman and William R. Bailey, Jr., Contact Lense Journal, Sep. 1974.
Espiritu Abraham M.
Huth Stanley W.
Lam Sam W.
Allergan Inc.
El-Arini Zeinab
Morris Theodore
LandOfFree
Method for simultaneously cleaning, decolorizing and thermally d does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for simultaneously cleaning, decolorizing and thermally d, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for simultaneously cleaning, decolorizing and thermally d will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1347607