CA2021576A1 - Agent for preventing and treating opacity of lens - Google Patents
Agent for preventing and treating opacity of lensInfo
- Publication number
- CA2021576A1 CA2021576A1 CA2021576A CA2021576A CA2021576A1 CA 2021576 A1 CA2021576 A1 CA 2021576A1 CA 2021576 A CA2021576 A CA 2021576A CA 2021576 A CA2021576 A CA 2021576A CA 2021576 A1 CA2021576 A1 CA 2021576A1
- Authority
- CA
- Canada
- Prior art keywords
- group
- lens
- preventing
- agent
- lower alkyl
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
The present invention is to provide a highly effective agent for preventing and treating opacity of lens, containing the organic germanium compound represented by the formula (1);
(see fig. I) [wherein R1 to R3 represent hydrogen atoms, lower alkyl groups each of which may be the same or different and selected from the group consisting of methyl group, ethyl group, etc., or phenyl groups substituted or unsubstituted;
X represents a hydroxyl group, an O-lower alkyl group, an amino group or O-Y+ {Y represents a metal such as sodium, potassium, etc., or a compound having a basic group such as lysozyme and basic amino acid, etc.}] or (2) a combination of the organic germanium compound and aminoguanidine.
(see fig. I) [wherein R1 to R3 represent hydrogen atoms, lower alkyl groups each of which may be the same or different and selected from the group consisting of methyl group, ethyl group, etc., or phenyl groups substituted or unsubstituted;
X represents a hydroxyl group, an O-lower alkyl group, an amino group or O-Y+ {Y represents a metal such as sodium, potassium, etc., or a compound having a basic group such as lysozyme and basic amino acid, etc.}] or (2) a combination of the organic germanium compound and aminoguanidine.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1187658A JP2838290B2 (en) | 1989-07-20 | 1989-07-20 | Eyeball opacity prevention improver |
JP01-187658 | 1989-07-20 |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2021576A1 true CA2021576A1 (en) | 1991-01-21 |
CA2021576C CA2021576C (en) | 1999-02-16 |
Family
ID=16209929
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA 2021576 Expired - Lifetime CA2021576C (en) | 1989-07-20 | 1990-07-19 | Agent for preventing and treating opacity of lens |
Country Status (2)
Country | Link |
---|---|
JP (1) | JP2838290B2 (en) |
CA (1) | CA2021576C (en) |
-
1989
- 1989-07-20 JP JP1187658A patent/JP2838290B2/en not_active Expired - Fee Related
-
1990
- 1990-07-19 CA CA 2021576 patent/CA2021576C/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JP2838290B2 (en) | 1998-12-16 |
CA2021576C (en) | 1999-02-16 |
JPH0352811A (en) | 1991-03-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKEX | Expiry |