AQSIQ released phoropter test procedures implemented September 15

AQSIQ has issued a "comprehensive refractometer (including visual acuity chart) test procedures", and will be officially implemented on September 15. This means that the country is currently widely used in major cheap sunglasses hospitals and optical shop optometry equipment - integrated refractometer, quality control testing and measurement of visual acuity chart will be the first to have an accurate means of technical support. The procedure is measured by the Chinese Academy of Medical Biology, the United Nations and other research institutions together to develop manufacturing enterprises. According to the Chinese Academy of Medical Biology, measured about the researchers, also known as integrated refractometer optometry head, commonly known as bovine lung or head in the industry, it is actually a combination of precision lenses optometry, optometry examination is a ball lens, column lens, a prism sheet and various auxiliary lenses and each adjustment components integrated in complex integrated vision inspection equipment, by the superposition of internal mirror disk optometry lens combination to achieve the patient's refractive error and visual function tests. Optometry lenses are versace sunglasses cheap forced management of measuring instruments, has been in the strong inspection catalog, can be measured by a standard test focimeter. And although integrated refractometer is a precision combination of refraction of the lens, but because of the special nature of its structure and function, combined lenses are no longer the simple sum of the components of lenses between the lens and the lens is also eccentric, tilt and mutual position and spacing and other factors, existing focimeter been unable to meet their measuring and testing, so it is necessary to develop a special measuring device and on this basis to develop procedures, in order to achieve a comprehensive refractor machine metrology. A long time ago, our main method of using a computer refractor or optometry optometry lenses with vision statement inserts provide a reference degree for patients, and then determine the final degree by trying on glasses. Now, the combined operation convenient integrated refractometer and vision statement can quickly and efficiently check the patient's refractive error and visual features, more comprehensive picture of the patient's visual characteristics, has become the main means of optical shops and hospital optometry, the application more widely. To improve the accuracy of optometry, optometry in addition to their own level optometrist outside best quality cheap sunglasses The quality of optometry equipment is also crucial. The main drafters of Zhang Ji Yan describes procedures, evaluation of key parameters phoropter quality is good or bad vertex, including spherical, cylinder lens and prism degree such as optometry diagnostic equipment, which gives a direct measurement results are accurate or not related to the patient's vision correction. Refraction and visual acuity table as a functional check of the auxiliary equipment, the paper has been developed from the initial vision statement is now widely used as a projection eye chart, eye chart display type, its quality has a direct impact on the quality of patient fitting . Therefore, with the widespread use of integrated refractometer and vision statement, its quality control testing and measurement industry has become the focus of widespread concern.