This is the data after soft lens coating. The coating solution of this group is BTM (4), with a concentration of 30% in 4: 1 water and ethanol. The lubricate degree is 7. Lubricity is based on miacare total oneThe table shows contact angle data. Measure with 0, 200, 400, 600, 800 and 1000 times with your finger. The initial contact angle was 65. The contact angle after 1000 wipes is very close to the contact angle when uncoated. Moreover, when the lens surface is enlarged, it can be seen that the lens surface is stained, and the image shows that the surface is uneven.