Use of nonionic surfactant to enhance the cleaning effect of pancreatin on contact lenses
US5318717A · kind A · utility
9Cited by
27References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 17, 1992 |
| Grant date | Jun 7, 1994 |
| Priority date | — |
| Expiry date | Jul 17, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D1/722
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A contact lens cleaning solution containing an enzyme having proteolytic activity and a surfactant, and optionally also a chelating agent and urea, and a method of cleaning contact lenses utilizing this solution are described. The solution and method effectively remove deposits of proteinaceous material, mucins, lipids and calcium located either on or beneath the surface of the lens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.