Optometrists pay attention to the steps of using a comprehensive refractometer_Industry News_

Optometry with glasses is an essential step. The use of good optometry equipment and professional optometrists can make optometry more accurate; but some optometrists do not follow the correct steps to perform optometry in order to complete their work quickly, resulting in inaccurate optometry; The following editor will introduce to you the operation method of the comprehensive optometry; the comprehensive optometry is nowadays more advanced optometry equipment, and some large-scale brand chain optical shops will use this equipment for optometry. If you find that the optometrist does not follow the following methods, then It is best not to go to this optical shop to match glasses. Operation method of automatic comprehensive optometry 1. Adjust the optometry table: start the lift switch of the optometry table, and automatically adjust the height of the optometry table, so that the seat height and the examinee are in a comfortable and natural state. 2. Adjust the head position of the examinee: the forehead and mandible of the examinee are naturally close to the forehead and enter the jaw rest, so that the eyes and the refractor lens are in a state of level vision, and the jaw rest can be rotated and lifted by the jaw rest to allow the examination If the eye is parallel to the marking line of the bracket, you can also turn the handle of the refractometer to raise and lower the lens appropriately. 3. Adjust the lens eye distance: keep the subject’s cornea at a distance of 12mm from the refractor lens, and pull the handle of the refractor back and forth to allow the subject to open both eyes and look at the image in the lens. The test will be performed in the order of right eye and then left eye. . 4. When the screen shows that the identification of the refractor is clear and the subject’s eyes are clearly visible on the screen, you can press the button on the top of the handle to see the test data, and then press the print button again to complete a test, and then insert the data in sequence. Make final adjustments and prescribe when appropriate. Note: 1. For children with pupils smaller than 2.5mm and under 12 years old and with large astigmatism and hyperopia, it is best to dilate the pupil first to reduce eye accommodation. 2. Excessive eye fatigue, poor physical condition, over-drinking or long-distance travel, people on night shifts, as well as people who have not installed a refractor regulator and a refractor that has been used for many years, will affect the accuracy of the detection. 3. Subjects are too old, especially those with intraocular diseases. Such as cataracts, vitreous opacity, it is difficult to accurately detect with a refractor.