Citation

Chu BS, Wood JM, Collins MJ. Optom. Vis. Sci. 2009; 86(11): E1267-75.

Affiliation

FAAO School of Optometry and Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland, Australia.

Copyright

(Copyright © 2009, Lippincott Williams and Wilkins)

DOI

10.1097/OPX.0b013e3181bb41fa

PMID

19786931

Abstract

PURPOSE.: To investigate whether wearing different presbyopic vision corrections alters the pattern of eye and head movements when viewing and responding to driving-related traffic scenes. METHODS.: Participants included 20 presbyopes (mean age: 56.1 +/- 5.7 years) who had no experience of wearing presbyopic vision corrections, apart from single vision (SV) reading spectacles. Each participant wore five different vision corrections: distance SV lenses, progressive addition spectacle lenses (PAL), bifocal spectacle lenses (BIF), monovision (MV) and multifocal contact lenses (MTF CL). For each visual condition, participants were required to view videotape recordings of traffic scenes, track a reference vehicle, and identify a series of peripherally presented targets. Digital numerical display panels were also included as near visual stimuli (simulating the visual displays of a vehicle speedometer and radio). Eye and head movements were measured, and the accuracy of target recognition was also recorded. RESULTS.: The path length of eye movements while viewing and responding to driving-related traffic scenes was significantly longer when wearing BIF and PAL than MV and MTF CL (both p

Language: en