Invalid of single vision:When people over 40 years old, one pair of single vision glasses might not be able to meet their requirements. They could see...
READ MORESingle Vision Lens is a common basic lens type in the eyewear industry, specially designed to solve single refractive problems such as myopia and hyperopia. Its core feature is that it has a fixed focal length, ensuring that the wearer can obtain clear vision at different distances. For myopic patients, single vision lenses use a concave lens design, which can effectively expand the light path, so that the visual effect of distant objects is clearer; while for hyperopic patients, the lens uses a convex lens design to focus the light so that distant objects are accurately projected onto the retina, achieving a precise visual experience.
Compared with complex bifocal or progressive lenses, the biggest advantage of single vision lenses is their simplicity. The lens has only one focal length, and the wearer does not need to adapt to the transition between multiple focal lengths. This feature makes single vision lenses extremely widely used in daily life. Whether it is reading for a long time, using a computer, or doing other daily activities, consumers wearing single vision lenses can enjoy a long-lasting and clear vision, while effectively reducing eye fatigue and discomfort.
Jiangsu Green Stone Optical Co., Ltd. is a professional optical lens manufacturer with strong combination of R&D, production and sales. We have production base of 65000 square meters and more than 350 employees. With introduction of complete sets of advanced equipment, new production technology and moulds, we sell our optical lenses not only in the domestic market, but also export to the world.
Our lens products involves almost all types of lenses. Product range covers 1.499, 1.56, 1.60, 1.67, 1.70 and 1.74 index, including single vision,bifocal, progressive, blue cut, Photochromic, blue cut photochromic, Infrared cut etc. with HC, HMC and SHMC treatment. Besides finished lens, We also manufactures semi-finished blanks. The products are registered with CE&FDA and our production certified by ISO9001& ISO14001 standards.
We positively introduce excellent management technology, comprehensively import Corporate Identity System and enhance the external image of company and brand.
Invalid of single vision:When people over 40 years old, one pair of single vision glasses might not be able to meet their requirements. They could see...
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