Optician's luminous painting

This standard ophthalmologist's table, which is also used by opticians to measure visual acuity, consists of a metal body supporting a plexiglass plate screen-printed with letters and numbers that make up the monoyer test. It dates from the 70s and is in superb vintage condition. It is possible to hang it from a wall or put it down and divert its initial use into a decorative bomb.