| 摘要 |
PROBLEM TO BE SOLVED: To obtain a liquid agent for contact lenses, which has low toxicity to the eyes and is safely usable while having sufficient sterilizing effectiveness by incorporating a trialkyl triamine compd. expressed by the specific formula as a sterilizing component into this liquid agent. SOLUTION: This liquid agent for contact lenses is prepd. by incorporating the trialkyl triamine compd. expressed by the formula (where, (n) is an integer from 4 to 18 and (m) is an integer form 1 to 8) as the sterilizing component into the liquid agent in view of the fact that the prescribed trialkyl triamine compd. known as a detergent and sterilizing agent for food factories, etc., has the low toxicity to the eyes and has the sufficient safety for use as the sterilizing component of the liquid agent for contact lenses. At this time, the trialkyl triamine compd. is incorporated at a concn. of 0.01 to 1000ppm into the liquid agent and, if necessary, a borate buffer agent is incorporated therein. A quaternary ammonium salt based sterilizing agent or glycine based sterilizing agent is incorporated therein. |
