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1. What kind of people are teenage defocus lenses suitable for?

● Children and adolescents under the age of 14.

● Children and adolescents with poor myopia control after wearing single-optical myopia glasses.

● Myopia children and adolescents who cannot use orthokeratology lens.

Defocus lenses should not be worn in children with over-regulation and implicit oblique myopia (only 7% of patients with implicit oblique myopia).

2. How to check and wear adolescent defocus lens correctly?

Optometry requirements

● Lenses for children must be dilated by the diopter of dilated dilation.

● During optometry, the eye position and adjustment function must be checked, and the prescription should be adjusted according to the adjustment function and eye position.

● Defocus lenses must be fitted under foot correction, not low or over correction. (Foot correction: Minimum degree of best corrected visual acuity)

● Measure pupil distance of single eye, and assemble left and right glasses respectively according to the data.

Frame selection

At the same time, defocus functional lenses have strict requirements on the center of the lens, and the adjustable nose pad can better help the center positioning, so that the parameters such as distance and rake Angle of the rear mirror are more suitable for the facial structure of the child.

Processing standard

● Attention should be paid to lens processing: the visible lens cross is not the processing level reference line, nor the scatter axis position, its function is to demonstrate the photometric change. During fabrication, a focal meter is used to locate the optical center of the lens.

● Wear after processing. If the optical center deviates from the pupil reflection point, adjust the frame.

● After adjusting the frame, display the label.

3. Scientific use of eyes, regular review

It is recommended to wear the defocus lens for a long time after the lens is tested and rechecked every 3 months. Regular tracking of children’s refractive development is helpful for children’s myopia management. In short, through the standard optometry, appropriate requirements of the frame, in line with the requirements of processing and assembly and the correct use of the method, in order to better reduce the peripheral defocus technology of the product to play a better effect.