title: Simulation and modeling of metamorphopsia with a deformable amsler grid.
abstract: A method to simulate and model metamorphopsia by means of a deformable Amsler grid is proposed. The interactively deformable grid is based on cubic B-splines to obtain a locally controlled deformation. By simulating metamorphopsia on normal sight volunteers, acquisition of a correction percentage is possible as a result of analyzing the magnitude of the simulated distortion and the applied correction model. The correction percentage obtained is 75.78% (7.36% standard deviation). This can express the feasible correction rate with the guidance of the patient qualitative feedback. The present work is motivated by the idea of obtaining a correction model of a patient with metamorphopsia and to implement this model into a head-mounted display to compensate the patient's deformation in the near future.
authors.affiliation: Computer Aided Medical Procedures (CAMP), TUM, Garching, Germany. martingo@in.tum.de
authors.forename: Anabel
authors.initials: A
authors.lastname: Martin-Gonzalez
authors.forename: Ines
authors.initials: I
authors.lastname: Lanzl
authors.forename: Ramin
authors.initials: R
authors.lastname: Khoramnia
authors.forename: Nassir
authors.initials: N
authors.lastname: Navab
mesh_terms: D000465:Algorithms; D003198:Computer Simulation; D006801:Humans; D008954:Models, Biological; D010775:Photic Stimulation / Q000379:methods*; D014584:User-Computer Interface; D014786:Vision Disorders / Q000175:diagnosis* / Q000503:physiopathology*; D058609:Visual Field Tests / Q000379:methods*; D014794:Visual Fields; D014796:Visual Perception