Automatic refractometer
中文介绍
自动验光仪是一种用于测量眼睛屈光状态的光学仪器3。它能够快速、准确地测定被检者的屈光不正程度，如近视、远视、散光等3。其原理主要是通过一系列光学原理和电子设备，采集被测者眼睛对光线的反射信息等数据并进行分析，以得到视力状况以及相关眼部数据3。
自动验光仪具有诸多优点，如操作简便，可减少人为误差，还能避免交叉感染，提高工作效率3。部分自动验光仪无需散瞳，且有专门的婴幼儿模式，能方便地为不同群体进行验光1。此外，一些自动验光仪还具备接触镜测量功能，可测量软性接触镜的度数，增加了验光准确性3。
自动验光仪应用广泛，常见于眼科医院、医院眼科检测中心、眼镜店、视光中心等场所3。根据功能和适用范围，可分为主观验光用自动验光仪、客观验光用自动验光机、儿童验光自动仪等；根据被检眼的运动类型，可分为手动式自动验光仪和电动式自动验光仪3。
英文介绍
An automatic refractometer is an optical instrument used to measure the refractive state of the eye3. It can quickly and accurately determine the degree of refractive errors of the tested person, such as myopia, hyperopia, astigmatism, etc3. Its principle is mainly to collect and analyze data such as the light – reflection information of the tested person’s eyes through a series of optical principles and electronic devices, so as to obtain visual conditions and relevant eye data3.
Automatic refractometers have many advantages. For example, they are easy to operate, which can reduce human – made errors, avoid cross – infection and improve work efficiency3. Some automatic refractometers do not require mydriasis, and they have a special infant mode, which can conveniently perform refraction for different groups1. In addition, some automatic refractometers are also equipped with a contact lens measurement function, which can measure the power of soft contact lenses, increasing the accuracy of refraction3.
Automatic refractometers are widely used in ophthalmic hospitals, eye – testing centers in hospitals, optical stores, optometry centers and other places3. According to functions and application scopes, they can be divided into automatic refractometers for subjective refraction, automatic refractometers for objective refraction, automatic refractometers for children, etc. According to the movement type of the tested eye, they can be divided into manual automatic refractometers and electric automatic refractometers3.