[A convex-concave contact lens for vitreoretinal operations with the BIOM]

A new convex-concave contact lens for wide-angle vitreoretinal surgery with the BIOM was developed. Placed on an eye, in which silicone oil is injected, it prevents the formation of an optically disturbing oil-water-film on the surface of the cornea. Thus the new contact lens leads to an essential improvement of the fundus view intraoperatively without affecting the optical properties of the BIOM.