@Butrflynet,
Me, I'm thinking more water in my bod during the day - but also get the doc's point that that isn't relevant in this circumstance.
I'm not dismissing a humidifier, but also not grabbing on to it.
With my two eyes, one is just fine, except for harboring a cataract that will get worse if left in place, soon to be gone, assuming the surgery next Tuesday perks along. It's the 4x surgical mess eye that is dry, producing wild glare and subsequent tears. I had been guessing the eye irrigation system (hah, I know irrigation design) has been compromised. But I was dead wrong about the clogged duct idea.
Can't remember if I posted this but he said it was the breakdown and separation of tearing (presumably leaving unwashed space patches) that caused irritation (or some words like that).
I've shot a few drops of non prescription but hydrating drops today (prescription eye drops of other sorts - I once paid $130. per prescription for a bunch of years, nearly killed me financially, though they were about more than hydration) and done the compress maneuver four times, and things are better.
Meantime, Brooks grocery store has some moistening eyedrops for $2.99. I'll try them. From my old science view, all I need is sterile saline.
Not that I never did all that before, but apparently I never got ahead of the dryness thing.