It is necessary to choose the appropriate childrens glasses frame, lenses, brightness, processing, and frame adjustment.
There are also instructions on scientific eye care, scientific use and maintenance of childrens glasses. What is the relationship between dilated pupil prescription and follow-up prescription? The prescription for dilated pupils eliminates all accommodation, including pseudomyopia (also known as accommodation myopia), and also eliminates some physiological accommodation.
Re examination prescription is the result of the small pupil state after pupil recovery. This result is clear and comfortable after trial wearing before it can be used for childrens glasses lens fitting. As long as the prescription for re examination is close to the prescription for dilated pupils, it is reliable.
Before optometry, check and record the uncorrected visual acuity (first time wearing glasses) or corrected visual acuity with original glasses. Determination of the main eye (can also be checked later).
Clean and disinfect the optometry equipment to ensure that the eyeglass lenses are clean and transparent. Especially during the epidemic, it is necessary to disinfect once. Zero eye data (auxiliary lenses, spherical lenses, cylindrical lenses, etc.).
Implant the pupillary distance data based on the optometry instrument, adjust the subject's sitting posture (high and low position, front and back distance), adjust the forehead rest adjustment button, adjust the distance between the eyes and the lens, and observe at the lung head window. The vertical line is tangent to the corneal vertex. Keep the cursor bubble in the center position horizontally, vertically, and forwards and backwards.
Firstly, implant the initial objective examination degree, and gradually reduce the negative lens (add positive lens) until there is a slight blur (astigmatism needs to be corrected) based on this visual acuity.
Close your right eye, open your left eye, and follow the same steps. Open both eyes at the same time.
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