Company Introduction

Founded in April 2, 2002, Chongqing Yeasn Science & Technology Co. Ltd(Yeasn) has a total of 143 workers, focusing on R & D, manufacturing, sales, and service of optical and ophthalmic instruments. It is committed to providing professional products and services for medical institutions, optical industry, testing institutions, higher education institution and so on. It’s national high-tech enterprise, manufacturing enterprise for medical device, manufacturing enterprise for measuring device, and member of national optical and optical device standardization technical committee and council member Chongqing optical academy.

Yeasn strictly adheres to international standards and national standard in product design and manufacturing process, and participates in international and national standards establishment of many optical products. The company has obtained many national patents and CFDA, FDA, CE and other international authoritative certifications in slit lamps, auto refractometer, vision tester, lensmeter, PD meter and other products.

Inheriting to quality policy of “Robust design, lean manufacturing, committed to delivering customer with quality products and professional service, Chongqing Yeasn is committed to providing high-quality products and service for customers.

Chongqing YEASN has agents in many Chinese cities including Beijing, Shanghai, Suzhou, Zhengzhou, Nanning, Xi’an, Danyang, Shenyang, Urumchi, Chengdu, and etc. Besides, Chongqing YEASN has also developed distributors in overseas markets for example in Europe, Asia, North America and Latin America. We are wholeheartedly committed to customer service consciousness, providing regular door to door maintenance service and technical assistance on site to all of our agents in domestic and abroad, to constantly improve customer satisfaction.

We are devoting to become the leader in Optical and Ophthalmic industry through strengthening service consciousness continuously. 


“YUANSHI” and “YEASN” brand have already been registered worldwide, What’s more, our company also has the right for import and export, our products have been exported to overseas markets.Chongqing Yeasn’s mission is to become an international enterprise with well-designed and high-quality products in optical and ophthalmic industry, build a credible global brand and create a “Global Yeasn”.