You can try the following methods to fix scratched sunglasses: Toothpaste: Use a non-abrasive toothpaste, apply it to the scratched area, and gently rub with a soft cloth. Baking soda: Make a paste of baking soda and water, apply it to the scratch, and rub gently with a soft cloth. Professional repair kits: There are specific products available in the market designed to fix scratches on lenses. For more details, click here. For severe scratches, it is advisable to consult a professional optician for repair or replacement.