In no way was I proposing that urine be used as a disinfectent, eye drops or whatever. Just pointing out a few little known facts about human urine:
The ancient Romans used urine as a bleaching agent for cleaning clothes and there are even isolated reports as a teeth whitener.
In England, stale urine was used for cleaning and to flavor ale.
Shipwrecked or people otherwise adrift at sea for long periods often resort to drinking their urine when no rainwater is available, seawater being unsuitable. People stranded in deserts often also drank urine to prevent life-threatening dehydration from setting in. However, this desperate measure achieves little to delay death from thirst as urine dehydrates one in the same manner saltwater does.
Aztec physicians used urine to clean external wounds to prevent infection, and administered it as a drink to relieve stomach and intestine problems. Purported beneficiaries of the 'urine cure' include Mohandas Gandhi, Jim Morrison, and Steve McQueen.