The mechanism of vision is a miracle, where the light falls from objects on ‎the eye, then the Cornea and Lens of the eye focus the light on the Retina (this ‎is called the “Refractive Power of the Eye”), and then the Retina converts the light into ‎nerve signals, and send them to the brain’s visual center through the optic nerve. In many cases, defect occurs in the Refractive Power of the Eye due to problems in the ‎Cornea, Lens or eye size. Accordingly, light reflected from objects is concentrated either in ‎front of, behind the Retina, or irregularly on the Retina itself. This can cause vision problems ‎such as Myopia, Hyperopia, Astigmatism or Presbyopia (which ‎often occurs after the age of forty), or even visual disability and blindness, as ‎statistics showed that there are 5 million people worldwide suffer from blindness ‎caused by Refractive Defects, while 124 million suffer from low vision. ‎ Despite the availability of many modern solutions to these problems, the glasses ‎and contact lenses still fascinate some of our customers. glasses and contact lenses of all kinds, whether therapeutic or ‎cosmetic. If you use glasses or contact lenses, we recommend you to make annual ‎follow-up & medical exami.