Effectiveness and comfort of Oculus Keratograph on tear film function test before corneal refractive surgery
10.3980/j.issn.1672-5123.2017.8.28
- VernacularTitle:Oculus眼表综合分析仪在角膜屈光手术前泪膜功能检测中的有效性和舒适性
- Author:
Peng, ZHANG
;
Ju-Ling, LYU
;
Ju-Fen, WU
;
Lan, WANG
;
Jie, ZHANG
;
Shu-Ping, HUO
;
Jin-Peng, CHEN
- Keywords:
Keratograph 5M;
excimer laser corneal operation;
tear film;
comfort
- From:
International Eye Science
2017;17(8):1512-1515
- CountryChina
- Language:Chinese
-
Abstract:
AIM: To explore correlation,consistency and comfort between traditional tear film examination methods and Oculus Keratograph.METHODS: A retrospective study.Totally 101 cases (101 eyes) were diagnosed myopia and then accepted LASEK (laser epithelial keratomileusis).Non-invasive tear film break-up time(NIBUT),lower tear meniscus height(LTMH) were measured with Oculus Keratograph,fluorescein tear film break-up time(fl-BUT) and Schimer Ⅰ test (SⅠt) were performed on all cases.The correlations analysis between NIBUT and fl-BUT,LTMH and SⅠt were performed by Spearman rank correlation,consistency check between NIBUT and fl-BUT by Bland-Altman analysis.Visual analogue scale(VAS) was applied on evaluating the comfort of two kinds of examination methods.RESULTS: LTMH and SⅠt showed positive correlation (rs=0.346,P=0.001).NIBUT and fl-BUT showed positive correlation (rs=0.393,P=0.001),95% consistency limits range-9.62 to 14.18 in Bland-Altman Figure.There was significant difference between VAS of NIBUT and VAS of fl-BUT(z=-2.324,P=0.020).There was significant difference between VAS of LTMH and VAS of SⅠt (z=-8.845,P=0.001).CONCLUSION: Oculus Keratograph can objectively measure NIBUT and LTMH,and was more comfortable than traditional tear film examination methods.It can effectively assess tear film function before corneal refractive surgery.
