A novel high-resolution kinetic method for visual field mapping of scotoma in age-related macular degeneration

Dror Zur, Guy J.Ben Simon, Anat Loewenstein, Yair Alster, Joseph Moisseiev, Shimon Ullman

Research output: Contribution to journalArticlepeer-review

Abstract

BACKGROUND AND OBJECTIVE: To examine a new high-resolution kinetic mapping method for scotoma in age-related macular degeneration. PATIENTS AND METHODS: A computer-based program for kinetic visual field mapping was tested in 10 healthy subjects and 14 patients with age-related macular degeneration and fixed preferred retinal locus. The stimulus was presented using a back projector on a screen located 40 cm from the subject. The findings were then compared with static results. RESULTS: Control group mapping revealed good congruency with the anatomic blind spot. Mapping of the 14 patients with age-related macular degeneration was rapid and revealed good accuracy. The average deviation of the mapping border from the anatomic scotoma border was no more than 3.1% of the scotoma radius. Static mapping of 7 of the patients with age-related macular degeneration was longer and revealed lower accuracy. CONCLUSIONS: The proposed method is more rapid, accurate, and consistent than static mapping. It allows accurate mapping of central scotoma with suprathreshold stimulus, and may be used in the future for detecting the early stages of age-related macular degeneration using subthreshold stimulus.

Original languageEnglish
Pages (from-to)395-405
Number of pages11
JournalOphthalmic Surgery Lasers and Imaging
Volume35
Issue number5
DOIs
StatePublished - 2004

Fingerprint

Dive into the research topics of 'A novel high-resolution kinetic method for visual field mapping of scotoma in age-related macular degeneration'. Together they form a unique fingerprint.

Cite this