How Traditional Chinese Medicine Treats Vision Impairment Caused by Ischemic Stroke

When a patient experiences sudden visual impairment following an ischemic stroke—commonly referred to as a cerebral infarction—this symptom often signals involvement of the posterior circulation, particularly the occipital lobe (the brain’s primary visual processing center) or optic radiations. While Western medicine prioritizes acute interventions such as intravenous thrombolysis or mechanical thrombectomy within strict time windows, and long-term secondary prevention with antiplatelet agents, statins, and blood pressure control, many patients seek complementary approaches to support neurologic recovery and functional rehabilitation.

In Traditional Chinese Medicine (TCM), post-stroke visual disturbances are typically categorized under “blurred vision” (mù mèi) or “dim sight” (mù àn), viewed not as isolated ocular pathology but as manifestations of underlying imbalances—most commonly Liver Yang rising, Phlegm obstructing the orifices, Blood stasis blocking the channels, or Liver and Kidney Yin deficiency. TCM practitioners conduct individualized pattern differentiation based on tongue appearance, pulse quality, and systemic symptoms before prescribing treatment.

Acupuncture is frequently employed, targeting points such as GB20 (Fengchi), BL1 (Jingming), BL2 (Zanzhu), and GV20 (Baihui) to calm Liver Yang, invigorate local circulation, and clear channel obstructions. Herbal formulas may be customized: for instance, Tianma Gouteng Yin is used when Liver Yang hyperactivity and wind-phlegm are dominant; Buyang Huanwu Tang may be selected in cases of Qi deficiency and Blood stasis, especially during the recovery phase; and Qi Ju Di Huang Wan is considered for chronic presentations rooted in Liver-Kidney Yin deficiency with associated dryness or photophobia.

It is critical to emphasize that TCM therapies should never replace evidence-based acute stroke care. Delaying thrombolysis or thrombectomy to pursue herbal or acupuncture treatment can result in irreversible neuronal loss. Rather, integrative management—where TCM modalities are introduced only after stabilization, under coordinated supervision with neurologists and rehabilitation specialists—may offer adjunctive benefits in improving visual field awareness, reducing visual fatigue, and supporting cortical reorganization. Ongoing clinical trials continue to explore the neurophysiologic mechanisms behind such effects, including modulation of cerebral blood flow, anti-inflammatory activity, and synaptic plasticity enhancement.