Ophthalmic solution
US4409205A · kind A · utility
107Cited by
7References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 16, 1981 |
| Grant date | Oct 11, 1983 |
| Priority date | — |
| Expiry date | Jan 16, 2001 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K31/77
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
An ophthalmic aqueous solution having an ionic salt ion content within the range 0.01% to 7.5% expressed as sodium chloride equivalents and comprising a non-ionic synthetic polymer such as polyvinyl alcohol and/or polyethylene glycol, and a non-ionic tonicity adjusting agent. The solution is effective in treating "dry eye" conditions by causing a normalization of irregularly structured tears and at least retarding the precipitation of potein-like substances from the aqueous layers thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.