title: Management of binocular diplopia due to maculopathy with combined bangerter filter and fresnel prism.
abstract: OBJECTIVE
  To describe treatment of binocular diplopia due to maculopathy with a combination of Bangerter foil and Fresnel prism. Methods and Case Report: A protocol for prescribing a combination of Bangerter foil and Fresnel prism is described. A series of three patients in whom a Bangerter foil or prism alone were ineffective for binocular diplopia due to maculopathy, along with a detailed case report of one of these patients, illustrates how a combination of both were used to treat the diplopia.
  
  
  CONCLUSIONS
  Fogging is presumed to relieve binocular diplopia due to maculopathy by inducing a functional central scotoma in the affected eye. In some patients, prism correction is needed in addition to a Bangerter foil to eliminate diplopia, possibly by impoving superimposition of the scotoma in the affected eye and the fovea of the sound eye.
authors.affiliation: From the W. K. Kellogg Eye Center, University of Michigan, Ann Arbor, Michigan.
authors.forename: Ida L
authors.initials: IL
authors.lastname: Iacobucci
authors.forename: Bruce A
authors.initials: BA
authors.lastname: Furr
authors.forename: Steven M
authors.initials: SM
authors.lastname: Archer