Role of artificial tears with and without hyaluronic acid in controlling ocular discomfort following PRK: a randomized clinical trial  

作　　者：Mehrdad Mohammadpour Masoud Khorrami-Nejad Delaram Shakoor 

机构地区：[1]Translational Ophthalmology Research Center,Farabi Eye Hospital,Tehran University of Medical Sciences,Tehran 1336616351,Iran [2]School of Rehabilitation,Tehran University of Medical Sciences,Tehran 1148965111,Iran

出　　处：《International Journal of Ophthalmology(English edition)》2021年第8期1225-1230,共6页国际眼科杂志（英文版）

摘　　要：AIM:To compare outcomes of applying preservative free artificial tears(PFAT)with and without hyaluronic acid(HA)in early postoperative course following photorefractive keratectomy(PRK).METHODS:In this triple-blinded randomized clinical trial,PRK procedure was performed on both eyes of 230 patients.Following PRK,patients were divided into three groups:the HA^(+)group,44 patients PFAT containing HA;the HA-group,71 patients PFAT without HA were administered 5 times per day(every 4 h);the third group,115 patients received no PFAT before lens removal.On the 1st and 4th postoperative day,Visual Analogue Score(VAS)was utilized to evaluate patient’s level of pain.Participants were asked to complete a questionnaire about the severity of eye discomfort ranked from 0 to 10(0=no complaint;10=most severe complaint experienced).RESULTS:In eyes receiving PFAT with or without HA(Drop group),mean scores for epiphora,foreign body sensation,and blurred vision on the 1st postoperative day were statistically lower(P<0.05).Filamentous keratitis(FK)was detected in 11(4.7%)eyes,and recurrent corneal erosion(RCE)was observed in 5(2.1%)eyes.In the control group,FK was noted in 16(6.9%)eyes while 13(5.6%)eyes had RCE and 5(2.1%)eyes had corneal haze.The rate of complications was statistically lower in Drop group(P=0.009).However,the aforementioned scores were not statically different between HA^(+)and HA-group one and two(P=0.29).CONCLUSION:Following PRK,applying PFAT with and without HA yields faster visual recovery,decreases postoperative ocular discomfor t and haze formation;however there is no additive effect for HA.

关 键 词：artificial tears hyaluronic acid ocular discomfort photorefractive keratectomy 

分 类 号：R779.6[医药卫生—眼科]