Abstract: A contact lens for examining an eye under an incident light beam includes a main element having: a planar first entrance face placed perpendicularly to the beam; at least one reflective face; and a spherical exit face having a centre of curvature and an axis of symmetry that is perpendicular to the entrance face and that passes through the centre of curvature, the exit face being intended to be applied to the eye and to focus the beam on a working point in the interior of the eye, a second entrance face placed facing the spherical exit face, along the axis of symmetry; and a central void extending from the planar first entrance face to the second entrance face.

Abstract: The disclosure relates to a cryogenic device for surgical use, which can be used to cool an area of the body and includes: a cryogenic gas supply conduit and a discharge conduit, an end piece comprising a metal tip intended to be brought into contact with the area to be cooled and a gas release chamber and a gas injection nozzle connected to the supply conduit at the one end and opening into the chamber in the direction of the metal tip at the other end. The supply conduit and the discharge conduit are formed in a common flexible extruded tube that is inserted into the end piece.

Abstract: The disclosure relates to a cryogenic device for surgical use, which can be used to cool an area of the body and includes: a cryogenic gas supply conduit and a discharge conduit, an end piece comprising a metal tip intended to be brought into contact with the area to be cooled and a gas release chamber and a gas injection nozzle connected to the supply conduit at the one end and opening into the chamber in the direction of the metal tip at the other end. The supply conduit and the discharge conduit are formed in a common flexible extruded tube that is inserted into the end piece.