Vision-MDT™

Neurovisual Medicine and the Multidisciplinary Clinical Collaboration Framework

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Preface

Over the past several decades, increasing medical specialization and subspecialization have significantly improved diagnostic and therapeutic capabilities. However, this progress has also contributed to growing fragmentation within healthcare systems, particularly in the field of vision-related neurorehabilitation.

Vision is not merely a sensory function; it is a central mechanism for brain organization and integration. Nevertheless, its role in neurorehabilitation has long been underestimated.

Clinical observations suggest that many visual disorders are not primarily caused by structural ocular pathology, but rather by dysfunctions within the central nervous system (Goodale & Milner, 1992). Children with learning difficulties, reading disorders, and attentional problems often present with normal routine ophthalmic examinations despite significant visual-functional challenges. Children with cerebral palsy or developmental delay frequently exhibit complex deficits in visual cognition and sensory integration. Similarly, neurorehabilitation patients commonly demonstrate visual–motor coordination impairments while lacking access to systematic visual rehabilitation interventions (Bavelier et al., 2010).

At present, these conditions remain poorly integrated within existing healthcare structures. Their disciplinary boundaries are unclear, clinical pathways are fragmented, standardized assessment systems are limited, and effective multidisciplinary collaboration models are insufficiently developed. As a result, many patients fail to receive comprehensive and effective care.

In response to these challenges, we propose the theoretical framework of Neurovisual Medicine (NVM) and establish the Vision-MDT™ multidisciplinary clinical collaboration system. Within this framework, Neurovisual Medicine is not simply an extension of traditional ophthalmology or rehabilitation techniques. Rather, it represents a vision-centered model of neurorehabilitation and multidisciplinary clinical organization based on the principle of “Vision as Integration.”

1. Overview of Neurovisual Medicine

1.1 Definition

Neurovisual Medicine (NVM) is a medical framework centered on visual function and grounded in brain-function organization and multidisciplinary collaboration.

Its primary areas of focus include:

Central processing mechanisms of visual information;
Interactions between visual function, cognition, and behavior;
Identification and intervention of central visual dysfunction;
The role of vision in child development and learning;
The contribution of vision to neurorehabilitation and functional recovery;
The organizational role of neurovisual rehabilitation in managing complex functional disorders.

1.2 Neurovisual Rehabilitation

Neurovisual Rehabilitation (NVR) is a systematic intervention process based on neuroplasticity within the NVM framework.

Its principal objectives include:

Restoration of visual function;
Reconstruction of visual–cognitive integration;
Improvement of real-world functional outcomes.

1.3 Core Characteristics

Theoretical Core

A brain-centered approach to visual function.

Organizational Core

Multidisciplinary collaboration.

Clinical Core

Functional restoration and long-term management.

2. Vision as a Central Integrative Function of the Brain

2.1 Vision as Integration

Vision is not only a sensory input pathway but also a major integrative system involved in:

Spatial orientation;
Postural control and balance regulation;
Motor planning and execution;
Sensory integration;
Attention regulation;
Reading and learning;
Behavioral organization;
Emotional regulation;
Social interaction.

The visual system is extensively interconnected with vestibular, motor, auditory, language, and higher cognitive networks, making it a central hub of brain functional integration (Milner & Goodale, 2008).

2.2 Limitations of Traditional Medical Models

Traditional organ-based medical specialization has historically confined vision to the domain of ophthalmology. In reality, however, many visual disorders originate from:

Central nervous system dysfunction;
Sensory integration disorders;
Neurodevelopmental and cognitive-behavioral abnormalities;
Dysfunctions in neurorehabilitation and learning-related organization (Mapstone et al., 2003).

3. Neurovisual Medicine and Related Disciplines

3.1 Ophthalmology

Traditional ophthalmology primarily focuses on ocular structures and refractive status.
NVM expands this perspective toward:

Central visual dysfunction;
Visual cognition;
Functional reconstruction;
Integration with rehabilitation and educational systems through Vision-MDT™.

3.2 Neuro-Ophthalmology

Neuro-ophthalmology traditionally addresses disorders of the optic nerve and visual pathways.
NVM further extends into:

Neurodevelopment;
Visual–cognitive integration;
Rehabilitation medicine;
Educational collaboration.

3.3 Neurorehabilitation

Vision directly influences:

Balance;
Motor planning;
Attention;
Learning capacity;
Environmental adaptation.

NVM provides an organizational framework for neurorehabilitation rather than serving as a single therapeutic modality (Rowe et al., 2020).

3.4 Developmental Medicine

Visual dysfunction may contribute to impairments in:

Attention;
Learning;
Social cognition;
Behavioral organization.

NVM establishes collaborative bridges among developmental medicine, rehabilitation, psychology, and education.

4. The Vision-MDT™ Practice Framework

4.1 Definition of Vision-MDT™

Vision

The integrative entry point of brain function.

MDT

Multidisciplinary Team.

Core Principle

Reorganizing multidisciplinary collaboration through vision-based integration (Vision as Integration).

4.2 Core Components

Clinical Collaboration System

Integrated collaboration among:

Ophthalmology;
Neurology;
Rehabilitation medicine;
Psychology;
Education.

Professional Training System

Including:

Fellowship programs;
Clinical training;
Collaborative practice models.

Digital Collaboration Platform

Development of digital systems for:

Clinical support;
Collaborative management;
Teleconsultation;
Data integration.

Research and Academic System

Supporting:

Multicenter clinical research;
Developmental neuroscience studies;
Neurorehabilitation research;
Vision neuroscience research.

4.3 Clinical Pathway

Screening → Multidimensional Assessment → MDT Diagnosis → Stratified Intervention → Follow-up Evaluation

Multidimensional Assessment

Integrated evaluation of:

Visual function;
Neurological function;
Behavioral function.

MDT Participation

Intervention plans are dynamically adjusted through multidisciplinary collaboration.

4.4 Spectrum of Disorders

Acquired Neurovisual Disorders

Stroke;
Traumatic brain injury;
Neurodegenerative diseases.

Developmental Neurovisual Disorders

Visual developmental abnormalities;
Visual–cognitive integration disorders;
Reading-related difficulties.

Central Extensions of Traditional Ophthalmic Disorders

Strabismus;
Amblyopia;
Binocular vision dysfunction.

5. The NVFAS System

The Neurovisual Functional Assessment System (NVFAS) is a structured screening tool within the Vision-MDT™ framework designed for the preliminary identification of neurovisual dysfunction and determination of the need for MDT intervention.

Its scoring and classification recommendations are intended for clinical reference and should not be used as standalone diagnostic criteria.

5.1 Scoring System

Versions

Pediatric Learning/Development Version;
Adult/ABI Rehabilitation Version.

Assessment Domains

Visual perception;
Spatial perception;
Binocular vision;
Oculomotor function;
Visual–cognitive integration;
Behavioral adaptation.

Scoring Scale

0–5 points
(0 = Normal; 5 = Extremely Severe Dysfunction)

5.2 Functional Classification and Intervention

Grade	Functional Status	Recommended Intervention
0	Normal	Routine observation
1	Mild	Basic training and educational guidance
2	Moderate	Individualized training and MDT collaboration
3	Moderate-to-severe	Structured MDT intervention and follow-up
4	Severe	Intensive rehabilitation and medical intervention
5	Extremely severe	Comprehensive long-term management

6. Significance and Future Development of Vision-MDT™

Academic Significance

Promoting Neurovisual Medicine as an interdisciplinary field.

Clinical Significance

Providing systematic solutions for complex functional disorders.

Organizational Significance

Exploring future models of collaborative healthcare delivery.

Future Directions

Development of Vision-MDT™ pilot centers and collaborative networks;
Multicenter clinical and translational research;
Standardized assessment systems;
Clinical guidelines and consensus development;
Professional education and fellowship training systems.

7. Conclusion

Neurovisual Medicine is not merely a new specialty. It represents a new medical paradigm for understanding vision, brain function, and multidisciplinary collaboration.

Vision-MDT™ seeks to establish not only a clinical pathway, but also a future-oriented organizational model for medicine itself.

Appendices

Appendix A

NVFAS Clinical Scoring Forms

Appendix B

NVFAS Functional Classification and Intervention Recommendations

Appendix C

Clinical Pathway Flowchart

Appendix D

Vision-MDT™ Collaboration Framework Diagram

References

Goodale, M. A., & Milner, A. D. (1992). Separate visual pathways for perception and action. Trends in Neurosciences, 15(1), 20–25.

Bavelier, D., et al. (2010). Removing brakes on adult brain plasticity: from molecular to behavioral interventions. Journal of Neuroscience, 30(45), 14964–14971.

Rowe, F. J., et al. (2020). Neuro-visual rehabilitation: a review of clinical approaches. Neurorehabilitation and Neural Repair, 34(7), 567–583.

Leat, S. J., et al. (2013). Vision and reading in children with developmental disorders. Ophthalmic and Physiological Optics, 33(5), 467–478.

Sabel, B. A., et al. (2021). Vision restoration after brain injury: mechanisms and rehabilitation. Progress in Brain Research, 260, 123–150.

Mapstone, R., et al. (2003). Visual-spatial deficits in neurological patients. Journal of Neurology, Neurosurgery & Psychiatry, 74(1), 43–48.