Medical optometry accurately diagnoses the patient's refractive status and abnormal ocular muscle accommodation through the 21-step optometry method. Conventional optometry methods are relatively simple, including retinoscopy, computer optometry, or insert optometry, etc., and the results are rough optometry results; and in medical optometry, in addition to the above inspections, a comprehensive refractor must be used to check the spherical power and astigmatism. The astigmatism axis is fine-tuned to make the diopter detected very accurate.
Ordinary optometry only needs conventional optometry equipment such as computer refractometer, lens box and retinoscopy; medical optometry must be equipped with comprehensive optometry, multi-function visual target projector, corneal topography, and eye axis in addition to the above equipment. Advanced refractive inspection equipment such as measuring instrument and intraocular pressure measuring instrument. The computer optometry examination is fast and convenient, but it can only make a preliminary screening of the refractive state, and must not use its results as the standard of optometry. The comprehensive optometry instrument integrates a variety of inspection functions, and the optometry carried out without the comprehensive optometry instrument is not a medical optometry.

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Nanbei Instrument Limited is affiliated to Nanbei International Group Limited.It has been exported to more than 120 countries around the world for 20 years , and it is one of the largest and the most comprehensive instrument and equipment manufacturers in China. It integrates research,development,production and sales as one of the independent legal personality persified technology group. The headquarter is in Zhengzhou (International Air Port Area),China.And it also has the office in Beijing, Shanghai,Shenzhen and Hong Kong of China.NANBEI had obtained ISO9001:2015 quality management system certification,SGS certification,and its products had passed EU CE certification and Rohs certification.

NANBEI main business involves lab instruments,life science equipment,ice machines,electrochemical analysis instruments,optical instruments,medical equipment,physical testing instruments and equipment, environment equipment/flow meter,industry-specific equipment,drug testing equipment, seeds,equipments, agriculture and food equipment,petroleum equipment,coal equipment, surveying instruments,construction equipment,road equipment,geological equipment, reagents supplies,weather instruments,environmental equipment, mining machinery,boilers and other products. We have won the trust and support with persified business model, professional technology,high-tech equipment,excellent work ethic, excellent business reputation,high quality products and perfect after-sales service in the course of business. We are trying to set up the global regional service agents,and NANBEI is being in the Asia Pacific region Equipment Industry-leading brands.

NANBEI involved products are throughout the universities, research institutes, factories and enterprises,chemical and pharmaceutical,medical,inspection,agriculture,food,supermarket,metallurgical mining,construction,petroleum,roads,bridges and other industries. Based on superior performance,fast attentive service,great value,our products are well recognized by domestic and foreign merchants. In the production process,we strictly enforce product manufacturing requirements. And we have established a complete quality management system,so that the product quality has a reliable guarantee.

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