The standard for an economical and useful pair of cheapest eyeglasses is a comfortable frame with lightweight, wear-resistant, and transparent lenses. To choose a mirror frame that suits you, first understand which style is suitable for your face shape.

The round face type is suitable for slender or square frames or pear-shaped frames; Choose a circle glasses men's frame with a square face shape and a slightly wider frame than the face shape; Rectangular face shape - a mirror frame with a longer rim height, etc.

Choose materials that are not easily deformed for the mirror frame according to your lifestyle habits; Ultra-light pure titanium frame; Various styles of thin frame alloy frames, etc.

When choosing a discount prescription glasses frame, a titanium frame is one of the good choices, but the cost is relatively high; Choosing a frame made of sheet metal or alloy is cost-effective. Next is the selection of lenses. Finally, choose a brand based on your economic budget.

How to choose a good pair of glasses? How should we distinguish the pros and cons of lenses that are both transparent and have a large price difference that is difficult to distinguish with the naked eye? Is there any data that allows us to easily distinguish the characteristics of lenses? Lens has three important data: refractive index, degree, and Abbe number.

The refractive index is the ability of different materials to deflect light. The higher the refractive index, the stronger the deflection ability (the ability to bend light), and when processed into glasses of a certain degree, they do not need to be so thick. So the higher the refractive index of the lens, the smaller the thickness, that is, the thinner.