Note 438 — ANCIENT ROMAN MEDICINE-STAMPS.
Reading edition
Some of the ancient collyria were gravely averred to possess properties that were optical, rather than medical. Thus Alexander Trallianus gives a receipt for a very complex collyrium, which, when anointed upon the eyes, enabled those who used it to gaze upon the sun even without harm (Possis etiam solem citra noxam intueri).—De Arte Medica, lib. ii. p. 174.