Bassia scoparia, also known as Kochia or broom cypress, has a long history of use in traditional Chinese medicine, where the dried fruits (called "Di Fu Zi") are employed for their purported benefits in treating various conditions, including eye infections such as conjunctivitis ("red eyes"). The traditional belief is that Bassia scoparia's cooling and dampness-draining properties help to alleviate eye redness, swelling, and discomfort.

However, scientific validation for its effectiveness in treating eye infections is minimal. Some laboratory studies have suggested that extracts of Bassia scoparia may possess anti-inflammatory or antimicrobial activity, but these studies are preliminary, not specific to eye infections, and often conducted in vitro (outside the human body). There are no well-controlled clinical trials or robust scientific evidence directly supporting the use of Bassia scoparia for eye infections in humans.

In summary, while Bassia scoparia is traditionally used in Chinese medicine for eye conditions, this application is supported mainly by historical and anecdotal evidence rather than substantial scientific research.