Contact lens eyeball centering support of soft material for use in conjunction with hard contact lens

• US 4,157,864 A
• Filed: 02/28/1977
• Issued: 06/12/1979
• Est. Priority Date: 02/28/1977
• Status: Expired due to Term

• Current Assignee: Bruno Koller, Friedrich Kilb
• Original Assignee: Bruno Koller, Friedrich Kilb
• Inventors: Koller, Bruno, Kilb, Friedrich
• Primary Examiner(s): Corbin, John K.
• Assistant Examiner(s): Sugarman, Scott J.
• Application Number:
  US05/771,646
• Time in Patent Office: 834 Days
• Field of Search: 351/160, 351/160 H
• US Class Current: 351/160.00H
• CPC Class Codes: G02C 7/04 Contact lenses for the eyes disinfection or sterilisation of contact lenses A61L12/00
• CPC Class Codes: G02C 7/048 Means for stabilising the orientation of lenses in the eye
• CPC Class Codes: G02C 7/049 Contact lenses having special fitting or structural features achieved by special materials or material structures

Abstract

A contact lens eyeball centering support of soft material for use in conjunction with hard corneal contact lenses. The support has the form and the material of a soft contact lens and is characterized by the fact that the central optical part is absent, to create a free opening without usual system. A hard corneal contact lens can, when the support is in position on the eye, be positioned into the free central opening without adhesion. The preferred embodiment of the lens eyeball centering support of soft material has an external diameter of approximately 15 mm and an internal diameter that corresponds approximately to the diameter of a standard commercial corneal hard contact lens.

Claims

1. An aid for wearing a hard corneal contact lens comprising a centering support to be worn on a human eye and having a shape conforming to the curvature thereof, said support formed from a soft contact lens material, said support further having means forming a central opening in the support with a diameter which corresponds substantially to the diameter of a hard contact lens, whereby a hard contact lens can be independently inserted into the opening to adhere to an eye without being affixed to the support.

2. An aid according to claim 1, characterized by the outside diameter of the centering support being approximately 15 mm.