Most lens scratches cannot be removed at home. Gentle cleaning can help distinguish a smear from damage.
Avoid toothpaste, baking soda, car polish and glass-etching products. They can damage lenses and coatings.
You may live with light marks that do not interfere. Ask an optician about distracting damage or glare.
Ask an optician or the maker about replacement lenses that fit your frame and lens requirements.
Prevent new scratches: use a clean case, rest glasses lenses up and keep your microfiber cloth clean.
Read the full guide for safe choices, lens replacement and habits that help prevent more scratches.