Eye testing requires a professional optometrist.
Optometrists need to use automatic optometers and computers to determine the number of lenses needed to correct vision, so as to obtain the refractive error of the patient’s eyes and determine the degree of refractive error.
It should be noted that, if the children under 12 years of age, because children’s eyes are more adjustable, so the operation of the pupil dilation is required to avoid large errors in the results of the optometry; 12 or more refractive error patients, depending on the circumstances of the decision on whether to need to dilate the pupil.
Detecting eye degrees need to be operated by professional optometrists to ensure the accuracy of optometry. To prevent errors in optometry, which may affect the subsequent professional refractive correction.