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Visual Remapping to Aid Reading With Field Loss

Remapping the Visual Field to Aid Reading With Central Scotomas

Who can join

Ages 16 and older · All sexes · Healthy volunteers welcome

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).
4. Satisfactory calibration not achievable using eye tracker

About the study

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.

What is being tested

• Traditional Remapping (behavioral)
• Personalized Remapping (behavioral)

Sponsor: University of Minnesota · Participants: 108 · Started: Feb 1, 2022

Contact the study team

• Stephen Engel, Ph.D. · Phone: 612-625-5571

Official record on ClinicalTrials.gov — NCT03848663

Locations in the U.S.

Conditions

• Macular Degeneration
• Low Vision

From ClinicalTrials.gov, data retrieved Sep 30, 2026. Each study sets its own eligibility; the study team decides who can join.