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?