Yeah it’s pretty wasteful. I’ve tried the Zeiss spray+microfiber cloth, but I haven’t had the greatest luck with it. I tried to use it just now to remind myself what it’s like, and I find that it spreads a thin greasy residue on my lenses.
Cleaning with dish soap is only a bit more effort and is much more effective in my experience (my glasses feel brand new afterwards). The Zeiss wipes get most of the way there usually, but I sometimes need two instead of one.
I use microfiber cloths, dawn dish soap, and water for a deep clean every once in a while. The microfiber cloth kinda gets cleaned in the process. I then use a second dry microfiber cloth to dry it off and prevent water spots on the lenses. Unfortunately I have to shake out my glasses before drying since water gets stuck in between my frames and my lenses.
For quicker cleaning, I use those Zeiss glasses wipes, though not entirely sure if getting brand name is important or not.
I generally use a similar method to this to deep clean my glasses, but I often don’t want to do that deep of a clean all the time since my glasses get dirty fast. I find the Zeiss glasses wipes work well for me, but there is a lot of waste involved. Oddly enough, their cleaning spray works terribly for me, and it seems to just spread grease around the lenses…
I was looking at the ingredients for each, and it seems that Zeiss used different ingredients for the two products. The wipes contain water, isopropyl alcohol, and “proprietary detergents and preservatives”. The cleaning spray contains water, butyl diglycol, and two other ingredients that to my knowledge are just preservatives. I think that in theory I could make a better cleaning spray by getting the right concentration of isopropyl alcohol and distilled water, mimicking the concentration in the wipes. What do you think is the highest percentage of isopropyl alcohol that I could safely use on glasses without damaging coatings?