Plastic lenses in glasses

I have had plastic lenses in my glasses for 50 years or more, and not noticed any problem. To clean them I just wipe them on anything around that is suitable: clean hanky, tissue, kitchen towel and now and then dunk them in hot water and washing up liquid.

I also give my glasses a good clean with washing up liquid. Make up, cleaner etc makes them greasy, apart from the lenses.

I don't like plastic lenses because they look misty or smart however much I wipe them. They seem worse when out at night. I also prefer the heavier feel of glass on my nose for some reason. My specs are always Zeiss glass lenses.

Try washing up liquid and rinse under the tap they come up sparkling.