Chongqing Yeasn Science & Technology Company Limited (Yeasn), founded in 2002, is a manufacturer and exporter specializing in R & D, making, selling, and service of optical measuring machines. Yeasn is a hi-and new-technology enterprise, medical equipment manufacturing enterprise and measuring machines making enterprise in Chongqing. Currently, Yeasn has series products of lensmeter, comprehensive refractor, interpupillary distance measuring instrument, glasses trial frame, corneal contact lens tester, and visual distance tester.

Yeasn continuously absorbs international advanced experience in its own research and manufacturing process, and carry out strictly related national standards and international criteria. Yeasn has gained a number of national patents, and has passed several national and international authoritative certifications. Yeasn is committed to promoting the development of domestic visual optical testing instrument industry and reaching out to participate in international competition. Moreover, Yeasn has taken part in establishing national and international standards of several visual optical products.

Yeasn upholds its corporate spirit "Integrity, Promptness, Innovation, Supplying Quality Products", and gradually increases investment on research and development and absorb more high-level talents. Yeasn attaches much importance to mechanism efficiency, digitalization, finely making, human-oriented management and independent innovation. The corneal contact lens tester produced by Yeasn filled a gap in domestic and international markets. Yeasn takes "gear at the market trend and take costumer first" as its core principle. Yeasn is committed to supplying high-quality products and satisfactory service, and raise its brand image gradually so as to gain more and more recognition home and abroad.

"Future is ahead only when one has a dream in heart". Yeasn dreams to be the NO 1 brand of Chinese visual optical products, to be a supplier and provider of world first-class visual optical products and visual optical resolutions, and to become a respectable excellent corporation. Yeasn people will unceasingly carry out operation reform and management innovation so as to enhance its strength as a whole. Moreover, Yeasn will continuously adhere to its differentiation strategy and spare no effort to make its own dream come true.