Systems and methods for mapping and evaluating visual distortions caused bymetamorphopsia are provided. A subject with distorted vision is shown initialpatterns whichmay be adjusted to appear non-distorted. A reference pattern within thesubject's region ofdistorted vision is generated from the initial patterns and is used to promotesuitable headposition and eye fixation. Further patterns within the distorted region areshown to the subjectand are adjusted to appear non-distorted. Patterns may be non-adjustableoutside of thedistorted region. A distortion map is defined based on the adjusted patterns.Additional detailmay be added to the distortion map by interpolation. Images may be distortedusing thedistortion map to appear non-distorted to the subject.
