Remapping the Visual Field to Aid Reading With Central Scotomas
University of Minnesota
Summary
Reading performance in patients with Central Vision Loss and age matched controls with artificial scotomas will be measured with and without different kinds of remapping of missing text to different parts of the visual field.
Description
Following initial characterization of their visual field loss, the participant's performance in reading tasks will be measured with and without remapping. Tasks will include reading groups of random letters, words, simple sentences, and "natural" text from the environment (taken from phone apps, signage, etc). Different kinds of remappings will be used by participants, including traditional and personalized remapping. For control observers, differently shaped artificial scotomas will be used. Participants interested in the study will be brought in for an initial visit. All participants will b…
Eligibility
- Age range
- 16+ years
- Sex
- All
- Healthy volunteers
- Yes
Inclusion Criteria: 1. 16 years or older 2. Central vision loss of at least 5 deg diameter, including the fovea, from bilateral central scotomas 3. Stable fixation (+/- 1 deg) using their PRL. 4. No cognitive impairment as indicated by a Mini-Mental State Examination (MMSE). 5. Satisfactory calibration achievable using eye tracker Exclusion Criteria: 1. Central vision loss of less than 5 deg diameter; scotomas that do not cover the fovea; unilateral scotomas 2. Poor fixation (worse than+/- 1 deg) using their PRL. 3. Cognitive impairment as indicated by a Mini-Mental State Examination (MMSE)…
Interventions
- BehavioralTraditional Remapping
Shifting text outside of scotoma
- BehavioralPersonalized Remapping
Shifting text based on individual letter-based perimetry
Location
- University of MinnesotaMinneapolis, Minnesota