Clean the lenses with mild soap and water, then dry with a microfiber cloth
Check whether the lenses have an anti-reflective or anti-scratch coating before trying any treatment
Apply a small amount of non-abrasive toothpaste to the scratch and rub gently in circular motions with a soft cloth
Rinse thoroughly and repeat only if needed
Mix baking soda with water to form a thick paste, then rub gently on the scratch with a soft cloth
Rinse and dry the lenses completely
Use a commercial plastic polish or lens polish designed for eyewear if the lenses are plastic
Follow the product instructions exactly
Avoid using abrasive cleaners, paper towels, or rough fabrics
Avoid using household glass cleaners on coated lenses
Replace the lenses if the scratch is deep or affects vision
Take the glasses to an optician for professional repair or lens replacement