Prism combined lens
1, according to their respective types of myopia diopter, accurate, sight distance, eye position, positive and negative relative accommodation etc. with their own products, during use, often self detection of vision, but also the need for regular (one month after preparation after 2-3 months) to the center of detection, timely replacement the new lens diopter decreased.
2. Wear and use when reading and writing at close intervals, the longer the better it is.
3, wear the interval as far as possible to keep in 33 centimeters, the visual distance is too large or too small will have a greater effect on the effect of the treatment of exercise.
4, 30-60 minutes of continuous use, if the eyes feel tired, can be temporarily removed, with the eyes for a while, or temporarily rest a few minutes.
5, when using stable myopia, such as concentrating on reading, writing and doing homework, it doesn't need to be worn for the rest of the time. In order to ensure the effect, please use it for more than 2 times a day, and use it for 30 minutes per time. It is completely different from the far - use spectacles that only play the role of visual aid. 1, wearing the initial stage, because the eyes are in the process of collective adjustment and relaxation, the eyes are swollen, the books may be slightly deformed, and the edge effect of the edge effect appears. This is a normal phenomenon. Discomfort can gradually adapt to and disappear after normal use.
2. Patients with normal visual acuity can be used selectively, or interruption or consolidation of treatment.
3, as the wear is used, the distance of the far and near use glasses is reduced to 50 degrees (0.5D) and the appropriate glasses should be rereplaced at the same time.
4, wear and use should be gradual and constant, and parents need more supervision.