Reminder-cue Scanning Training for Homonymous Visual Field Loss

Reminder-cue Scanning Training for People With Homonymous Visual Field Loss

This study will evaluate a new approach to training people with visual field loss to scan when driving

Homonymous visual field loss is the loss of vision on the same side in both eyes. The most common types are hemianopia (the loss of one half of the field of vision) and quadrantanopia (the loss of one quarter of the field of vision). Hemianopia and quadrantanopia may cause difficulties in seeing objects on the side of the field loss. People with these types of field loss can compensate by scanning (looking) toward the side of the field loss. However, sometimes they might not scan sufficiently well resulting in delayed responses to hazards when driving. The purpose of this research study is to evaluate a new approach, "reminder-cue scanning training", to training people with homonymous visual field loss to scan when driving.

Participants will receive reminder-cue scanning training in the driving simulator.Typically there will be three training sessions within about a 2-week period. In addition, participants will complete an evaluation in the driving simulator before and after the training.

Inclusion Criteria:

• Homonymous hemianopia or homonymous quadrantanopia for at least 3 months
• Binocular visual acuity of at least 20/40
• Prior or current driving experience
• Able to attend multiple study visits
• Able to communicate in English sufficiently to understand the study procedures

Exclusion Criteria:

• Physical or general health problems that could impair the ability to operate the controls of the driving simulator or participate in the training