Can you really wear OK lenses? These questions you need to know first

Keratology Othokeratology (OK lenses), which is a kind of reverse geometric design of rigid gas permeable special contact lenses, belongs to the third class of medical devices, and needs to be examined and fitted in a professional eye hospital like Fuzhou Eye Hospital. These contact lenses themselves have no prescription, so myopic patients can wear them at night while sleeping and temporarily have clear, naked-eye vision during the day. Importantly, OK lenses can prevent the rapid deepening of myopia.

According to Fuzhou Eye Hospital optometry experts: OK lenses principle is actually very simple, it uses a special anti-geometric design, by flattening the central curvature of the cornea, temporarily reduce the refractive index of myopia patients, so as to temporarily improve the naked eye vision. To put it simply, the external force generated during nighttime wear acts on the cornea to shape it and flatten it temporarily. During the daytime to remove the "OK lenses", after shaping the cornea can focus the light in the center of the retina, so that myopic patients can not wear glasses during the day, and by changing the shape of the cornea, resulting in peripheral defocusing effect in the retina, to further delay the growth of the number of adolescents.

Fuzhou Eye Hospital experts reminded friends interested in OK lenses: OK lenses can not "cure" myopia, it will flatten the cornea, the next morning to remove the lens, the cornea will slowly return, so it is just a continuous molding, recovery, and then molding and then restoration of the physical process. As long as the lens is removed 1 month later, the cornea will basically return to its original appearance, so OK lenses are a reversible non-surgical technology, basically will not cause irreversible damage to the eyes.

Before fitting, the wearer must undergo an eye examination, including cornea, conjunctiva and other anterior segments of the eye, fundus, intraocular pressure, corneal endothelium, corneal topography, ocular axis, tear film examination, refraction, visual function examination, and then try on the lenses, fit assessment, etc. If you have a problem, you may need to try on the lenses and evaluate the fit.

If your child is wearing OK lenses, Fuzhou Eye Hospital optometry experts reminded of these precautions you also need to know:

1, must need to be regularly rechecked, overnight wear the next day, a week, a month, three months for review, and the later period of every three months regularly rechecked, if there is any ocular discomfort should be readily available to the hospital for examination.

2, it is recommended to sleep with 8-10 hours, if the sleeping time is less than 8 hours, and can not achieve better results, you can sleep before wearing in advance.

3, try to avoid prolonged close eye use, to ensure a certain length of outdoor activities.

4, with OK lenses need to cut short nails, pay attention to personal hygiene, to prevent cleaning lenses when the nails scratched lenses, to avoid hand bacteria into the eyes.