Abstract: The invention provides a unique family of materials for use as OVDs in the course of eye treatment.

Abstract: The present invention relates to a sterile disposable and self adaptable diagnostic lens for the purpose of viewing the interior of a patient's eye during a diagnostic examination or during therapeutic procedures. The contact lens is made of a hollow body, having a front (toward eye) and a back (toward physician) exits, filled with transparent flexible material such as a gel. The front exit, facing the eye, is covered by a removable thin film, to keep the gel in place and to keep sterility. The back exit is sealed by a thin transparent window, through which light enters into and comes out of the lens, and can be flat, curved, prismatic or tilted with respect to the main axial axis of the lens. Attaching the front face of the lens to the patient's eye, after removing said film, causes the transparent flexible material outer surface to reshape and fit itself exactly to the patient's eye curvature, thus forming a lens whose curvature negates that of the cornea.