In winter, people who wear glasses have a common trouble, that is, fog on the lenses, which not only affects vision, but also sometimes brings danger to personal safety. To prevent the glasses from fogging, you need to apply some liquid medicine to the lenses first.
The preparation method of the medicinal liquid is as follows: add a few drops of turpentine to the mixture of 30 grams of glycerin and 70 grams of concentrated soap solution, stir well, and put it in a clean glass bottle for later use. When using, use a cotton swab dipped in some liquid medicine to wipe the lens, and then wipe it with a clean flannel. In this way, the lens will no longer be fogged within 4 to 5 hours.
