Kakarla V Chalam1, Chirag C Patel, Vinay A Shah. 1. Department of Ophthalmology, University of Florida College of Medicine, Jacksonville, Florida 32209, USA. kvchalam@aol.com
Abstract
PURPOSE: Development of a new self-retaining acrylic contact lens for vitreous surgery. DESIGN: A standard -60 diopters plano concave lens with the radius of curvature 6.7 mm (less than the cornea curvature) was modified with addition of four foot plates to facilitate stability and centration. METHODS: A drop of viscoelastic material placed between lens and cornea induces negative suction and helps retain the lens in position. CONCLUSIONS: This specially designed lens eliminates the need for suturing on the sclera or dependence on the assistant to provide placement. It provides a stable well-centered view of the fundus during vitreous surgery.
PURPOSE: Development of a new self-retaining acrylic contact lens for vitreous surgery. DESIGN: A standard -60 diopters plano concave lens with the radius of curvature 6.7 mm (less than the cornea curvature) was modified with addition of four foot plates to facilitate stability and centration. METHODS: A drop of viscoelastic material placed between lens and cornea induces negative suction and helps retain the lens in position. CONCLUSIONS: This specially designed lens eliminates the need for suturing on the sclera or dependence on the assistant to provide placement. It provides a stable well-centered view of the fundus during vitreous surgery.