The curative effect and the levels of BUT and SIT in cataract patients influenced by extracapsular cataract extraction with small incision and phacoemulsification

Abstract

Objective To compare the efficacy of small incision extracapsular cataract extraction (ECCE) and phacoemulsification for cataract patients and the impact on tear film break-up time (BUT) and tear secretion test (SIT) levels. Methods 84 cases of cataract patients in our hospital from December 2015 to December 2016 were selected, and were divided into observation group and control group according to the time of treatment, 42 cases in each group. The patients in the control group were treated with phacoemulsification, while the patients in the observation group were treated with small incision extracapsular cataract extraction. All patients were followed up for 12 weeks. The postoperative visual acuity, average astigmatism, changes of BUT and SIT levels and complications were compared between the two groups. Results After 1 week, 4 weeks, and 12 weeks, the visual acuity recovery rates of the two groups were not significantly different, without statistically significant differences (P>0.05). After 1 week, 4 weeks, 12 weeks, the average astigmatism of the two groups were not significantly different, without statistically significant differences (P>0.05). After treatment, the BUT and SIT levels of the two groups were significantly higher than those before treatment, while the differences between the two groups were not significant (P>0.05). After treatment, there were no statistically significant differences in the incidences of iris injury, corneal edema, posterior capsular rupture, and transient high intraocular pressure between the two groups (P>0.05). Conclusion Small incision extracapsular cataract extraction and phacoemulsification in the treatment of cataract have similar clinical efficacy, which can effectively improve the tear secretion function of patients, and effectively control the tear film break-up time, with good safety. Key words: Cataract; Extracapsular cataract extraction with small incision; Phacoemulsification; Tear film break-up time; Tear secretion function