TheAUC0~240(areaundercurve)ofthedruglevelsafterinstillation as1.8timesand2.1timescomparedwiththatofthecontr humorsrespectively ﹒ Thebioavailabilitywasincreasedsi ﹒ The druglevelsofHelenTMinthetearsand theordinaryophthalmicsolutionat3。Andthesignificancelas ......