Botanical Overview
Euphrasia officinalis, commonly known as Eyebright, belongs to the family Orobanchaceae. It is native to Europe, North America, and parts of Asia. The medicinally used parts are the aerial parts, including the flowering tops and leaves. Eyebright has a notable history in European herbal medicine, primarily for eye and upper respiratory conditions.
Energetics
Euphrasia is considered cooling in temperature and drying in moisture, with bitter and astringent tastes. It is regarded as having relaxing tonic effects on tissues, particularly mucous membranes.
Primary Actions
- Anti-inflammatory
- Astringent
- Mild antimicrobial
Indications
Western
- Ocular irritation
- Conjunctivitis
- Blepharitis
- Allergic rhinitis
- Mucous membrane inflammation
Syndromes
- Eye inflammation
- Upper respiratory mucosal inflammation
TCM
No well-established indications.
Ayurveda
No well-established indications.
Unani
No well-established indications.
Constituents & Mechanisms
Eyebright contains iridoid glycosides, flavonoids, phenolic acids, and lignan derivatives. These constituents contribute to its anti-inflammatory, astringent, and mild antimicrobial effects.
Dosage & Preparations
- Infusion: 1-2 g dried herb per cup, 1-3 cups daily
- Aqueous eye drops: sterile, standardized preparations used topically
- Tincture: 1:5 25-40% ethanol, 2-5 mL 2-3 times daily
Safety & Contraindications
Generally safe when used as directed. Avoid in pregnancy due to lack of sufficient safety data. Eye preparations should always be sterile to prevent infections. Allergic reactions are possible in sensitive individuals.
Astrological Correspondences
No clearly documented planetary or elemental rulers were identified from reputable sources.
Selected References
- Assessment Report on Euphrasia Officinalis – European Medicines Agency, 2010
- Euphrasia officinalis (Eyebright) – Plants For A Future
- Eyebright – NIH MedlinePlus Herbal Supplement Fact Sheet
- Euphrasiae herba – Hagers Handbuch der Pharmazeutischen Praxis, 2012