The use of Violet (Viola odorata) for treating red or itching eyes is primarily rooted in traditional herbal medicine rather than being scientifically validated. Historically, Violet has been employed in various traditional systems, such as Unani, Ayurveda, and European folk medicine, for a range of ailments, including eye conditions. In these systems, preparations made from Violet leaves or flowers—often as washes or poultices—were believed to soothe irritated eyes or reduce redness, likely because of their reputed cooling, anti-inflammatory, and demulcent properties.

However, modern scientific research specifically examining the effectiveness of Violet for eye conditions such as redness or itching is minimal to nonexistent. A few phytochemical studies confirm the presence of bioactive compounds in Violet, such as flavonoids and mucilage, which may theoretically have soothing or anti-inflammatory effects. Yet, there are no clinical trials or robust scientific studies that directly support its use for ocular complaints. Thus, while its application persists in some traditional practices, the evidence supporting its efficacy for red or itching eyes is weak and not substantiated by modern clinical data.