Evidence supporting the use of: Belladonna
For the health condition: Eyes (red or itching)

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Synopsis

Source of validity: Traditional
Rating (out of 5): 1

Belladonna (Atropa belladonna) has a long history of use in traditional medicine, particularly in Europe, where it was used for a variety of conditions, including ailments of the eyes. Historically, extracts from belladonna were used as mydriatics—agents that dilate the pupils. Women in Renaissance Italy reportedly used belladonna eye drops to achieve dilated pupils, which was considered attractive ("bella donna" means "beautiful woman"). This cosmetic use is documented in historical texts. Additionally, traditional medicine systems sometimes employed belladonna preparations for red or inflamed eyes, with the belief that its anticholinergic and anti-inflammatory properties could relieve discomfort. However, from a scientific perspective, there is very limited evidence to support the use of belladonna for treating red or itching eyes. While atropine and related alkaloids from belladonna are still used in ophthalmology today (for pupil dilation during eye exams or for certain inflammatory conditions), this use is strictly controlled and only under medical supervision due to the significant risk of toxicity. The use of crude belladonna or homeopathic preparations for common eye irritation is not supported by modern research and is potentially dangerous. Over-the-counter or traditional use for red or itching eyes is not recommended given the risk profile and lack of robust efficacy data.

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