Ive never had any luck with lens cleaner+microfiber cloth just smears the shit out of glasses. Here's my glasses cleaning process, I have had glasses my entire life and can't stand smearing even a little. My glasses coating has never been damaged from this though to cover my ass I will say do at your own risk.
- Get paper towel, wet and spray with a liquid soap+water mix spray bottle I recommend Dr.bronner soap very environmentally friendly works well You can also use regular dish soap if that's all you have.
- rub lenses with soapy paper towel really well on both sides. Get it soapy.
- (MOST IMPORTANT PART TO PREVENT SMEAR) rinse soap off glasses and gently shake frames to get off all excess water that you can. Then grab 5-8 sheets of toilet paper, roll/fold into a square and fold tp square gently around lenses to wick remaining water. Do not rub tp into lenses, only gently press.