Sun R, Gimbel H V
Gimbel Eye Center, Calgary, Alberta, Canada.
J Refract Surg. 1997 Mar-Apr;13(2):158-61. doi: 10.3928/1081-597X-19970301-12.
A randomized, double-masked study was conducted to investigate the effects of 0.5% ketorolac tromethamine (Acular) and 0.1% diclofenac sodium (Voltaren) on normal human corneal sensation.
Thirty normal volunteers were divided into two groups, (1) two-drop group, and (2) multiple-drop group. In the two-drop group, 15 volunteers randomly received two drops of 0.5% ketorolac tromethamine on one eye and two drops of 0.1% diclofenac sodium on the fellow eye. A masked investigator measured corneal sensation with the Cochet-Bonnet esthesiometer before applying the drops, and at 15, 30, and 60 minutes after using the eye drops. In the multiple-drop group, another 15 volunteers were randomly administered one drop of 0.5% ketorolac tromethamine or 0.1% diclofenac sodium in each eye, and the procedure was repeated every 5 minutes for 20 minutes. Corneal sensation was measured before, and 0, 15, 30 and 60 minutes after applying the drops.
In the two-drop group, neither of the eye drops had any effect on corneal sensation when only two drops were applied. In the multiple-drop group, corneal sensation was significantly reduced after multiple drops (p < 0.05) and was subsequently effective for at least 1 hour.
Both 0.5% ketorolac and 0.1% diclofenac can significantly decrease corneal sensation in normal eyes when multiple drops are used.
开展了一项随机双盲研究,以调查0.5%酮咯酸氨丁三醇(阿乐迈)和0.1%双氯芬酸钠(扶他林)对正常人角膜感觉的影响。
30名正常志愿者被分为两组,(1)两滴组,(2)多滴组。在两滴组中,15名志愿者随机在一只眼睛滴入两滴0.5%酮咯酸氨丁三醇,在另一只眼睛滴入两滴0.1%双氯芬酸钠。一名掩蔽的研究者在滴眼药前以及滴眼药后15、30和60分钟,使用科谢-博内角膜知觉计测量角膜感觉。在多滴组中,另外15名志愿者每只眼睛随机滴入一滴0.5%酮咯酸氨丁三醇或0.1%双氯芬酸钠,每隔5分钟重复该操作,共进行20分钟。在滴眼药前以及滴眼药后0、15、30和60分钟测量角膜感觉。
在两滴组中,仅滴入两滴时,两种滴眼药对角膜感觉均无任何影响。在多滴组中,多次滴眼后角膜感觉显著降低(p<0.05),随后至少1小时内有效。
当使用多滴时,0.5%酮咯酸和0.1%双氯芬酸均可显著降低正常眼睛的角膜感觉。