The Technology Hidden Behind the Lens Edger
From an optical point of view, they are fundamentally different from conventional soft contact lenses by being stable in shape, thus creating a tear-like lens between their back surface and the cornea. This lens equates to all the corneal irregularities, and since the corneal refractive index differs only slightly from the tear refractive index, this tear lens rectifies those aberrations that are incapable of correcting neither the glasses nor the regular soft contact lens edger . They therefore play an irreplaceable role in correcting irregular astigmatism, which occurs, for example, in keratoconus. With few exceptions, RGP contact lenses are the best choice for correcting optical eye defects.
The Proper Representation
Their representation in correcting eye defects varies from country to country. In a simple way, the higher the level of contactology, the higher the proportion of contact lenses. A major drawback to their greater use is the need for the …
