A low or high refractive index corneal inlay optical lens adapted to be inserted singly or multiply between the layers of a cornea to correct refractive errors in eyesight, wherein the implanted lens is a solid transparent uncoated lens having no apertures therethrough, of a diameter less than that of...http://www.google.es/patents/US5336261?utm_source=gb-gplus-sharePatente US5336261 - Corneal inlay lenses
