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Eyebright at a Glance
Eyebright is a common herbal name for several plants in the genus Euphrasia, now placed in the Orobanchaceae family. Euphrasia officinalis is frequently printed on commercial labels, but the taxonomy of the genus is complex and material sold as eyebright may represent more than one closely related species.
Identification
Eyebrights are small hemiparasitic plants with opposite leaves and small two-lipped flowers, often white or pale with purple markings and a yellow throat. Exact species identification can be difficult even for botanists.
Traditional Use
Eyebright has a long European folk reputation for eye-area and upper-respiratory complaints. The doctrine of signatures also influenced its historical reputation. Traditional use does not establish that it treats infection, glaucoma, cataracts, allergy or other eye disease.
Research
Modern clinical evidence is limited. A few studies have examined manufactured sterile ophthalmic products containing Euphrasia, but those products should not be equated with homemade tea, tincture or non-sterile extracts.
Critical Eye-Safety Note
Do not put homemade eyebright tea, tincture, powder or other non-sterile herbal preparations into the eyes. The eye is highly vulnerable to contamination and injury. Only products specifically manufactured and labeled as sterile ophthalmic preparations should be placed in the eye, and persistent redness, pain, light sensitivity, discharge or vision change requires professional evaluation.
Oral Preparation and Safety
Eyebright has historically been taken as tea or tincture, but robust dosing and safety data are limited. Allergy or digestive upset is possible. Pregnancy and breastfeeding safety have not been adequately established. Correct source identification matters because commercial lots may include multiple Euphrasia species.
Folklore and Spiritual Tradition
Eyebright has been associated in European folk tradition with clear sight, discernment and seeing situations truthfully. These are symbolic associations, not medical effects.
Bottom Line
Eyebright has a strong traditional reputation but a limited modern evidence base. The most important modern safety point is simple: non-sterile homemade preparations do not belong in the eyes. For educational purposes only.