Optical Coherence Tomography (OCT) in medical imaging: Capabilities and key applications

Knowledge about Spectacles and Lens

Spectacle lenses are primarily made from either glass or plastic (also known as organic glass). Historically, glass was the primary material, and "flint glass" was preferred due to its high refractive index and dispersion. However, plastic lenses have largely replaced glass in modern spectacles due to their lighter weight and shatter resistance.

Knowledge about the lenses for fitting glasses

The development of resin lenses: Overcoming the wear resistance of materials: In the mid-1980s, the surface hardening technology of lenses was successful; Ordinary resin lenses have a surface hardness of 2-3H. After hardening treatment, the hardness can reach 4-5H. Currently, many companies have launched super-hard resin lenses with a hardness of 6-7H. Reducing lens thickness: Resin lenses with different refractive indices have been successfully developed. Waterproof fog treatment: Coating a hard film, the molecules responsible for moisture adhesion, the molecules responsible for moisture absorption, and the surface hardness molecules. When the environmental humidity is lower than that of the lens, the film layer releases moisture outward. When the environmental humidity is higher than that of the lens, the film layer absorbs moisture. When the environmental humidity is much higher than that of the lens, the sticky moisture molecules turn a large amount of water into a water film.

Honeycomb coating glasses

Honeycomb coating glasses

Innovations in healthcare: The transformative power of medical optics

How to choose transparent and colored contact lenses

Key point: In terms of appearance, colored contact lenses are more attractive than transparent ones. Some brands of colored contact lenses even have lace edges, making the eyes look more dreamy.

Old Drivers,These Glasses Cannot Be Placed in Cars During Summer

As spring and summer gradually enter, the temperature gradually rises. There are many safety hazards in cars that will affect our lives, such as the frames and lenses that myopic people cannot do without.

What is glasses cleaning fluid? How should I use it?

What is glasses cleaning fluid? How should I use it?

The Importance of Sunglasses: More Than Just a Fashion Statement

How to Choose the Glasses Frame Material That's Right for You

The right way to store your glasses

What's the right way to clean and treat your glasses? Crystal-clear lenses – eyeglass wearers love that great feeling when they put on their glasses after cleaning and enjoy unhindered vision again. Wouldn't it be wonderful if our glasses were always clean, with smears, streaks and fingerprints a thing of the past? Proper lens care doesn’t only ensure better vision. It also lengthens the life of your glasses. Improper cleaning can damage modern lenses, even if they have an anti-scratch hard coating.

Blue light: the good and the bad

Blue light: the good and the bad How much blue light do we need? And how and when should we be protecting ourselves against it?