How to choose sun lens material
Selection of lens materials: should be selected according to age, occupation,fit over sunglasses , frequently engaged in activities, and preferences.
Glass lens: high hardness, not easy to scratch, but easy to be broken.
Due to the nature of work or other reasons, the spectacle lenses are easily stained with dust and scratched, and it is best to choose glass lenses.
Resin lenses: light weight, not easy to be broken, but low hardness, prone to scratches.
Because most children are naughty and playful, and eye injuries often occur due to broken lenses, it is best for children to choose resin sheets. Also, photochromic lenses are also a good option.
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