The skin of the eyelids is very thin: 0.4 mm as opposed to the skin of the back, which is ten times thicker. It must be so fine and thin because it must be very flexible to open and close the eyes in a flash.
The skin of the eyelids is very thin: 0.4 mm as opposed to the skin of the back, which is ten times thicker. It must be so fine and thin because it must be very flexible to open and close the eyes in a flash.