Posters

A comparative study on the tear film stability of the second eye in SMILE with different protective measures

Poster Details

First Author: T.Zhang CHINA

Co Author(s):                        

Abstract Details

Purpose:

Observe the changes of the first tear break-up time (NIKBUTf) and the mean tear break-up time (NIKBUTav) of the second operative eye with different protective measures during the small incision lenticule extraction (SMILE) by using Keratograph 5M ocular surface analyzer, and to observe the effects of different protective measures on tear film stability.

Setting:

Chongqing ophthalmology hospital,CHONGQING CITY,CHINA

Methods:

Prospective cohort study. From September 2019 to November 2019, patients underwent SMILE in Chongqing vision institute were included. 35 patients were divided into three groups.The left eye was observation eye. During the operation of the right eye during SMILE, the left eye was protected by Deproteinized calf blood Eye Gel or eyeshade, while the control group did not take protective measures. The NIKBUTf and NIKBUTav of left eye were measured by Keratograph 5M ocular surface analyzer before and after the operation of the right eye. SPSS 25.0 was used for statistical analysis.

Results:

The variation in NIKBUTf and NIKBUTav were significant in each group regarding time and grouping .There was no significant difference in the left eye NIKBUTf of the Gel group before and after the right eye underwent SMILE . The NIKBUTav of left eye in Gel group was longer immediately after operation of the right eye . In the eyeshade group and the control group , both NIKBUTf and NIKBUTav in the left eye were shortened immediately after operation of the right eye . In the control group, the reduction of NIKBUTf and NIKBUTav was the most significant

Conclusions:

Different protective measures and time changes had an impact on NIKBUTf and NIKBUTav. The protective measures of Deproteinized calf blood Eye Gel in second operative eyes during SMILE played a protective role in the stability of tear film. The protective effect of eyeshade on the tear film of the second operative eye is not obvious, and the stability of tear film is the worst during the conventional operation with no protective measures for the second operative eye

Financial Disclosure:

None