The present invention includes an ophthalmic device and system of mounting for correcting hyperopia, myopia and presbyopia. The present invention includes a limbus ring mountable in an encircling relation to a central optic zone of a cornea on a limbus annulus surrounding the cornea. In the limbus ring defines a substantially annular toroid defining a first average diameter that is selectable and has a hydrophilic coating disposed thereon. The inner radius of the limbus ring is selectable such that, upon mounting on the limbus annulus, the limbus ring causes the limbus annulus to contract or expand thereby causing the curvature of the cornea and the eye length to increase or decrease. The mounting system of the present invention is adapted to receive a limbus ring and further adapted to selectively place the limbus ring on a limbus annulus.
