Study parameters and result analysis
The average operation time from the first incision to earplug, as well as entering the hidden area of MESVI expression, the results of preoperative, intraoperative and postoperative examination are all the results of the above study.
The above experimental results were statistically analyzed by SPSS (version 24.0; SPSS Inc, Chicago, Illinois, USA). The average and standard deviation of digital variables, and the numbers and percentages of classified variables are used as the summary data of this time. Use paired t to test paired samples. Chi-square test or Fischer test was used to accurately check the unpaired proportion comparison. The experimental standard with statistical significance allows the difference of P≤0.05.