PROBLEM TO BE SOLVED: To provide artificial lachrymal fluid type ophthalmic solution that has excellent buffering action to maintain the pH, the osmotic pressure ratio almost equal to that of human lachrymal fluid and the inorganic ion composition almost equal to that of the human lachrymal fluid.SOLUTION: This artificial lachrymal fluid type ophthalmic solution includes sodium hydrogen phosphate and sodium edetate as buffering agents.COPYRIGHT: (C)2001,JPO【課題】 pHを維持する緩衝能に優れ、しかも人の涙液に近い浸透圧比を持ち、さらに人の涙成分とほぼ同じ無機イオン組成の人工涙液型の点眼剤を提供する。【解決手段】 緩衝剤として、リン酸水素ナトリウム及びエデト酸ナトリウムを含有する、人工涙液型点眼剤組成物。
