[MarkusWandel]

Maybe this isn't proper, but, what I do is wet them, rub them with a tiny amount of dish soap, then rinse them under the hot water tap.

Then blow the droplets off both sides and let the rest air dry. We have soft water here, so no water spots. No rubbing dry with any kind of cloth.

[tharkun__]

Tap water if chlorinated is not great for the coatings on modern glasses I've been told. YMMV if you're not in such a place.

I mix my own spray bottles from dish soap, non chlorinated water and a bit of rubbing alcohol actually. Water is softened.

[keane]

The Spectacle Factory recommends, in order, (1) warm water and a microfiber cloth, (2) Zeiss lens wipes, or (3) an ultrasonic bath: https://www.youtube.com/watch?v=m4lJ_5Tg9Ms

They recommend (v=5FUUgO95sb4) against both detergent for the sake of the lens coatings and against sprays which may cause grease to accumulate around the lens rim.

[OneLeggedCat]

If you're the kind of person who has bought a dozen pairs of cheap Zenni's... the lens coating gets visibly damaged every time I've used hand soap on them. I now just blast them with hot water and wipe dry with a lens cloth. I don't know whether hand soap is a problem for more expensive brands, but it definitely is for Zenni's.

[tcoff91]

I don't have soft water so i blot the lenses dry with lens paper. Works amazingly and my lenses last so long since i switched to the dish soap method.

[LVB]

40+ year glasses wearer here who learned this perhaps only 10 years ago, I think this is the correct way. The one annoying part is the difference that the glass coating makes. The water just falls off some of my glasses with barely as much as a light tap. Others length tend to hang onto the water in beads, so I have to actually wait for it to dry (or walk around with water spots, which I also do when impatient...)

[alfiedotwtf]

I’ve been wearing glasses for just under 30 years, and only last month I decided to actually try and clean my glasses with the tiny microfibres cloth they give you when you buy a pair of glasses rather than throwing it out because it gets annoying in your case because you just use your t-shirt… I’m not a 100% microfibre guy

[tcoff91]

Use lens paper to blot the water off.