Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Comparison of tear break-up time (BUT) before and after treatment between the combined treatment group and monotherapy group.
| Group | BUT before treatment (Mean ± SD) | BUT after treatment (Mean ± SD) | T value | P value |
|---|---|---|---|---|
| Combined treatment | 2.89 ± 1.42 | 8.18 ± 0.96 | 22.05 | .000 |
| Monotherapy | 2.91 ± 0.8 | 6.0 ± 1.0 | 17.5 | .000 |
| T value | -0.08 | 8.65 | ||
| P value | .935 | .000 |
