title: Newly designed self-retaining contact lens for vitreous surgery.
abstract: OBJECTIVE
  Development of a new self-retaining acrylic contact lens for vitreous surgery.
  
  
  METHODS
  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.
authors.affiliation: Department of Ophthalmology, University of Florida College of Medicine, Jacksonville, Florida 32209, USA. kvchalam@aol.com
authors.forename: Kakarla V
authors.initials: KV
authors.lastname: Chalam
authors.forename: Chirag C
authors.initials: CC
authors.lastname: Patel
authors.forename: Vinay A
authors.initials: VA
authors.lastname: Shah
mesh_terms: D000180:Acrylic Resins; D003261:Contact Lenses; D006801:Humans; D014821:Vitrectomy / Q000295:instrumentation*; D014822:Vitreous Body / Q000601:surgery*
chemical_list: D000180:Acrylic Resins