What is the most scratch resistant eyeglass lens?

How to Tell If Lenses Are Plastic or Glasses? If you want to know if your glasses are made of glasses or plastic, the safest way is to ask the optician from whom you bought the glasses. If you do not want to ask the optician, there are several ways to differentiate them, such as sound, weight, and temperature. Lightly tap the lens against your teeth or your ring. If the lens emits a high, ringing tone, it is a glasses. On the contrary, the plastic will have a low thud like sound when tapped. Glass lenses are much heavier than plastic glasses and glass lenses feel colder to touch while plastic glasses feel warmer since it is a better insulator. After learning what lenses you have, it is time to show how to remove coating from glasses. Possible effects
How to Tell If Lenses Are Plastic or Glasses? If you want to know if your glasses are made of glasses or plastic, the safest

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