The Accuracy Of The Computer Refractometer By A Number Of Factors
The accuracy of the computer refractometer by a number of factors, such as the patient's head and eye with the poor, moving to move, eye refraction within the refraction meter is not enough focus, so that relaxation is not enough, will inevitably affect the accuracy of refraction test results, Even the degree of repeated checks vary greatly. For children and patients with refractive interstitial turbidity, computer refractometer test error is large, refractometer even can not check the diopter. Therefore, it is not appropriate to use the degree of refraction of the computer as the sole basis of the glasses. Computer refractometer can not replace the retinographer optometry and lens correction technology, only to provide a useful reference for artificial optometry.
As the computer refractometer can quickly measure the general situation of refractive errors, to understand the extent of consumer refractive and a large number of outpatient optometry can provide a useful reference.
Computer optometry is an objective optometry, and its principle and retinal retinoscopy is basically the same, the use of infrared light and automatic fog as the device to relax the eye to adjust the purpose of using optical technology and automatic control technology to check the diopter. Subjective optometry and objective optometry can accurately measure the patient's refractive power and astigmatism axial. refractometer These two methods need a wealth of experience in optometry, in the mastery of the retinoscopy technology takes a long time, and computer optometry technology easier to learn and master.
Computer optometry instrument optometry for flexible corneal contact lens can be used for diagnostic optometry, both without dilation and can quickly measure the degree of refractive. Computer optometry instrument optometry results are all automatic printing, no conversion, usually a few seconds to a few minutes to determine a patient, refractometer and can quickly determine the degree of refractive error, for the lens correction to provide more accurate refractive power and distance between the pupil The