Chinese Pine (Pinus tabuliformis), known as "Song Bai" in traditional Chinese medicine (TCM), has a long history of medicinal use, primarily for its anti-inflammatory, analgesic, and wound-healing properties. In some TCM texts, various parts of pine trees, especially needles and bark, are used in formulas aimed at dispelling wind, clearing heat, and reducing toxicity. Red or itching eyes are often attributed to "wind-heat" or "liver heat" syndromes in TCM theory, and some traditional practitioners have historically recommended pine-derived remedies either topically or internally for these symptoms. However, pine is a relatively minor and less common ingredient for eye complaints compared to herbs like chrysanthemum (Ju Hua) or cassia seed (Jue Ming Zi).

There is minimal direct scientific research specifically validating Chinese Pine’s efficacy for treating red or itching eyes. Most modern pharmacological studies on pine focus on its antioxidant and anti-inflammatory effects in general, not specifically ocular health. Therefore, while its use for eye problems is recognized in traditional practice, the evidence base is weak, with little to no rigorous clinical or experimental data supporting its effectiveness for these symptoms.

In summary, the use of Chinese Pine for red or itching eyes is rooted in tradition, with only anecdotal or historical justification, and lacks robust scientific validation.