The goal of this focused narrative review by Kenneth J. Ciuffreda and Daniella Rutner is to give clinicians a current overview of VS/VSS treatments. Using PubMed, Google Scholar, and Semantic Scholar, the authors searched the literature using keywords associated with visual snow, visual snow syndrome, and treatment strategies. To establish foundational knowledge and clinical context, academic book chapters were consulted in addition to peer-reviewed journal articles.
6 Treatment Approaches
The management and treatment of VS/VSS have advanced significantly over the last ten years. Based on medical, neuro-optometric, and bioengineering viewpoints, the article promotes six main, exclusive treatment options.
1. Discussion of the Condition with the Patient
Patient education is the first and most fundamental intervention. Clinicians explain that VS/VSS is more common than previously thought and is typically benign and non-progressive. This reassurance is critical, as many patients experience significant anxiety and depression related to fears of symptom worsening or blindness. Referral to a neurologist is often recommended to rule out other disease-related causes and to provide reassurance through imaging when appropriate. Psychological or psychiatric referral may also be beneficial to address comorbid anxiety and depression and to support overall well-being.
2. Medications
Pharmacological treatment has included medications such as lamotrigine, verapamil, and acetazolamide. However, outcomes have been inconsistent. Only about 10–20% of patients report partial symptom improvement, while up to 40% experience symptom exacerbation. The limited effectiveness of medications reflects the incomplete understanding of VS/VSS neurophysiology. As a result, medications are currently not considered first-line therapy, and further controlled studies are needed before targeted pharmacological treatments can be recommended.
3. Oculomotor-Based Vision Therapy
Oculomotor-based vision therapy targets eye movement and binocular vision dysfunctions, which are common in VSS and affect approximately 60% of patients. These dysfunctions include abnormalities of vergence, accommodation, and versional eye movements (saccades and pursuits), often leading to reading difficulties, visual discomfort, blur, and diplopia.
Structured vision therapy programs, typically consisting of 12–24 sessions, focus on training saccadic, pursuit, fixation, vergence, and vestibular systems.
Reported clinical success rates are high (approximately 90%), with improvements in visual comfort, reading efficiency, and, in some cases, palinopsia. The therapeutic effects are thought to arise from visual system plasticity and perceptual-motor learning, potentially “resetting” abnormally low sensory thresholds. Despite promising outcomes, large randomized controlled trials are still lacking.
4. Chromatic Tints
The use of precision chromatic tints is one of the most effective and accessible treatments for VS/VSS. Typically prescribed as spectacle lenses (often using tools such as the Intuitive Colorimeter), these tints are individualized and frequently fall within the blue–yellow spectral range. Studies and case series report symptom reduction in 80–90% of patients, particularly for visual snow, palinopsia, photosensitivity, and photopsia.
The proposed mechanism involves modulation of thalamocortical pathways, potentially stabilizing abnormal sensory processing and reducing cortical hyperexcitability. While long-term controlled trials are lacking, clinical experience suggests that benefits are often maintained over several years.
5. Adaptations to Visual Snow
Visual noise adaptation is an experimental approach based on visual motion adaptation paradigms. Patients are exposed to dynamic random visual noise for varying durations, after which changes in VS perception are assessed. In preliminary studies, approximately 56% of participants experienced a temporary disappearance of VS, although the effect typically lasted only seconds. While short-lived, this approach provides insights into the neural nature of VS and may serve as a future adjunct treatment or inform bioengineering-based interventions.
6. Environmental Alterations
Environmental modifications focus on reducing symptom triggers in daily life. VS perception is often worse under low-light conditions, fluorescent lighting, and nighttime environments, and less noticeable in natural outdoor lighting. Suggested interventions include the use of LED lighting, modifying interior lighting conditions, and adjusting wall color schemes. Although largely anecdotal, these strategies may improve functional comfort and quality of life. Formal evaluation tools are needed to quantify their effectiveness.