Each person on a card has three characteristics, chosen from a set of five, namely big ears, orange hair, thick lips, a big nose and glasses (to represent nearsightedness).
It is applied using a torch and paint brush while wearing the standard safety equipment used for any patina application: rubber gloves, safety glasses, and a respirator.
Historically, ophthalmology has developed as a specialization of medical doctors while optometry originated as a profession that fitted people with glasses.
