验光在眼镜行业中占着十分重要的地位,验光的准确与否,直接影响到眼镜的质量。 验光的方法有二类,即主观(自觉)验光法和客观(他觉)验光法。所谓主观验光法,即让受检者在自然调节状态下,每眼依次试戴各种镜片,把受检者认为最清楚的镜片度数确定下来,并予处方和配镜。而客观验光法则是由医生或验光师用检影镜观察眼底反光动向,来确定被检眼屈光状态的客观方法。 为适应需要,主观、客观验光的方法中均有欲取代人工验光的验光仪问世,并在行业中投入使用。尽管现代科学技术日益进步,电脑验光仪的确越来越完善,而且出现了主客观多功能验光仪。但是,由于测量原理的限制,不可能考虑人眼作为生物眼的特征,它测量的度数与实际配镜有一个各人不一致的差距,配镜的最后处方还必须用主观验光法进行校正后确定。 另外,电脑毕竟是电脑,气温和干湿度等原因,均 Optometry industry in the glasses occupy a very important position, optometry accuracy or not, a direct impact on the quality of glasses. There are two types of optometry, subjective (conscious) optometry and objective (he felt) optometry. The so-called subjective refraction method, that is, subjects in the natural state of adjustment, try each eye in turn wear a variety of lenses, the subjects that the clearest lens to determine the degree, and prescription and glasses. The objective law of optometry is a doctor or optometrist with retinoscopy retinal reflex eye movement to determine the status of the eye was refuted objective method. In order to meet the needs of subjective and objective optometry methods are to replace the artificial optometry optometry come out and put into use in the industry. Despite the progress of modern science and technology, computer refractor indeed more and more perfect, and the emergence of the subjective and objective multifunction refractor. However, due to the limitation of the measuring principle, it is impossible to consider the human eye as the biological eye characteristic, and the difference between the measured degree and the actual eyeglass has an inconsistent difference. The final prescription of the eyeglass must also be corrected by subjective optometry . In addition, the computer, after all, is a computer, temperature and humidity and other reasons, are