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The Impact of Ocular Diseases on Driving: a Prospective Study

NCT02313259 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 60

Last updated 2017-02-23

No results posted yet for this study

Summary

The purpose of the study was (1) to determine thresholds for discriminating speed in peripheral fields of patients with dry AMD and (2) to examine the driving skills of licensed drivers with early dry AMD using a driving simulator and to investigate how their healthy counterparts perform on the same driving tasks. We hypothesized that speed discrimination may be better in patients with dry AMD than in healthy control subjects.

Conditions

Interventions

OTHER

Speed discrimination test

The participant has to stare in the middle of two screens, i.e the reference screen and the test screen. Dots are moving from the center to the edge of the screens at different speeds. The participant is forced to determine if the dots of the test screen are moving faster or slower than the reference screen. The test is designed in Psychtoolbox3. Data analyses performed using MATLAB. Two-alternative forced choice paradigm.

BEHAVIORAL

Driving simulation

25 km simulated car driving session. The participant is seated in the driver compartment of a real car featuring all the actual components (steering wheel, pedals regulating speed and brakes). He is instructed to respect road regulations as well as safety rules and must perform some driving manoeuvres, such has turning at intersections, stopping when necessary, passing another car, etc. Software Drive 3.0 by Systems Technology Inc., Hawthorne, California, USA. Magnetic head tracker (Flock of Birds, Ascension Technology Corporation, Burlington, Vermont, USA). A fixed-base driving simulator. 2 driving scenarios: a practice (10 minutes) and a main scenario including rural and urban sections (35 minutes).

Sponsors & Collaborators

  • CHU de Quebec-Universite Laval

    lead OTHER

Principal Investigators

  • Gilles Lalonde, MD · Centre Universitaire d'Ophtalmologie (CUO), Saint-Sacrement Hospital, Quebec City.

  • Marc Hébert, PhD · Centre Universitaire d'Ophtalmologie (CUO), Saint-Sacrement Hospital, Quebec City

Eligibility

Min Age
18 Years
Max Age
95 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2012-02-29
Primary Completion
2015-02-23
Completion
2015-02-23

Countries

  • Canada

Study Locations

More Related Trials

Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT02313259 on ClinicalTrials.gov