The selection of lens thickness (refractive index) should be based on the size of the frame to be matched, the degree of refraction, as well as the choice of discount eyeglasses online lens Abbe number and lens brand.

The final mirror selection is the TR frame and nonspherical resin lenses. The glasses I used to wear were anti-blue light. I didn't understand at the time, but I felt the color was different after removing the glasses. Later, I found out that the anti-blue light lenses filtered out some of the natural light, causing the world I saw to turn yellow.

Under normal circumstances, the impact of blue light on us in daily life is minimal. For those who have been working with computers for a long time, they can choose anti-blue light lenses. More importantly, they should not face electronic screens for long periods and should look into the distance every twenty minutes.

Then I organized the content on my own, and the eyeglass frame store I chose was the cheapest eyeglasses online flagship eyeglass store. The frames I used were quite comfortable. I only wanted the frame without the lenses, so it was cheaper.

As for the lenses, I searched for an online flagship store and after chatting with customer service, I chose nonspherical resin lenses. After the frames arrived, they were sent over for processing after being tried on. As both stores are in the same best place to buy eyeglasses, the round-trip time is two to three days. In the end, the cost of getting glasses for this time was not expensive, and the process of getting glasses online was completed.