Quick answer
Monocular fixation in a binocular field (MFBF) means training one eye at a time while both eyes stay open. With red-blue glasses each eye sees different content, so the weaker eye does the work without the other eye being covered. It bridges simple one-eye exercises and full binocular training.
Binocular treatment involves engaging the poorer-seeing eye while the better-seeing eye is open. We call this treatment “monocular fixation in a binocular field” (MFBF).
Monocular Fixation in Binocular Field (MFBF) vision therapy, acts as a bridge from monocular to binocular activities, improving the efficiency of the patient’s use of accommodative and binocular systems. The MFBF process enforces the use of one eye at a time, thus the work is "monocular." At the same time, the process calls for both eyes to be open, seeing at the same time; thus the work is done in a "binocular field." To proceed with therapy, the patient needs to wear anaglyphic glasses. So, each eye will see different content.
Who can be treated with these programs
- Ocular motility dysfunctions (Eye movement disorders)
- Non-strabismic binocular disorders (Inefficient Eye teaming)
- Strabismus (misalignment of the eyes)
- Amblyopia (Poorly developed vision)
- Accommodative disorder (Focusing problems)
- Visual information processing disorders, including visual-motor integration and other sensory modalities
Medically reviewed by Puneet (B.Optom, BNYS), Co-founder and CEO of CureSee, on 19 October 2026. This article is general information about eye health, not medical advice. Please talk to your eye doctor about your own eyes and treatment.