Product Description

1. Prescription Lenses: Many glasses are fitted with prescription lenses customized to correct refractive errors such as nearsightedness (myopia), farsightedness (hyperopia), astigmatism, or presbyopia.

2. Lens Materials: Glasses lenses are typically made from materials such as glass, plastic (including polycarbonate or CR-39), or high-index materials, each offering different properties such as durability, weight, and optical clarity.

3. Frame Styles: Glasses frames come in a variety of styles, shapes, and materials, including metal (such as stainless steel or titanium) and plastic (such as acetate or TR-90), allowing individuals to choose frames that suit their personal preferences and facial features.

4. Frame Sizes: Glasses frames are available in different sizes to accommodate various face shapes and sizes, ensuring a comfortable and secure fit.