However, the actual operating price is not necessarily the price I listed earlier. I had a full femtosecond operation at Taixue Haiweishi Ophthalmology Department. The original price was 2W+, but there was an activity at that time, and only 1.5W+ was used. What's more, I was operated by Professor Zhang Xiaofeng, the leading figure of Suzhou Full Femtosecond.