Below are the main rubriks (i.e strongest indications or symptoms) of Merc Viv in traditional homeopathic usage, not approved by the FDA.
Lids red, thick, swollen
Profuse, burning, acrid discharge
Floating black spots
After exposure to glare of fire; foundry men
parenchymatous keratitis of syphilitic origin with burning pain
Iritis, with hypopyon.≡ more ...