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Common name: Red eyebright
Botanical name: Euphrasia officinalis
© Steven Foster
In the wild, European eyebright grows in meadows, pastures, and grassy places in Bulgaria, Hungary, and the former Yugoslavia. Eyebright is also grown commercially in Europe. The plant flowers in late summer and autumn. The whole herb is used in herbal medicine.
Eyebright has been used in connection with the following conditions (refer to the individual health concern for complete information):
| Science Ratings | Health Concerns |
|---|---|
 | Irritated eyes |
 Reliable and relatively consistent scientific data showing a substantial health benefit. Contradictory, insufficient, or preliminary studies suggesting a health benefit or minimal health benefit. For an herb, supported by traditional use but minimal or no scientific evidence. For a supplement, little scientific support and/or minimal health benefit. | |
Eyebright was and continues to be used by herbalists primarily as a poultice for the topical treatment of eye inflammations, including conjunctivitis/blepharitis and sties. Traditionally, a compress made from a decoction of eyebright is used to give relief from redness, swelling, and visual disturbances due to eye infections.1 A tea is sometimes given internally along with the topical treatment. It has also been used for the treatment of eye fatigue and other disturbances of vision. In addition, herbalists have recommended eyebright for problems of the respiratory tract, including sinus infections, coughs, and sore throat.2 None of the traditional uses of eyebright have been studied in clinical research.
While there are many chemicals that may be active in eyebright, none of them has been proven to have any effect on eye inflammation or irritation. Some herbal texts suggest that the astringent actions of eyebright may reduce eye irritation while others suggest that eyebright may also have antibacterial actions topically. To date, there are no clinical studies to support or refute these proposed actions.
Traditional herbal texts recommend a compress made with 1 tablespoon (15 grams) of the dried herb combined with 2 cups (500 ml) of water and boiled for ten minutes.3 The undiluted liquid is used as a compress after cooling. The German Commission E monograph does not support this application, due to possible impurities in non-pharmaceutical preparations.4 Consult with a physician knowledgeable in the use of herbs before applying eyebright to the eyes.
Internally, two to three cups per day of eyebright tea is sometimes recommended. Dried herb, 1/2–3/4 teaspoon (2–4 grams) three times per day, may also be taken. The tincture is typically taken in 1/2–1 1/4 teaspoons (2–6 ml) three times per day.
Due to limited information on the active constituents in eyebright and the need for sterility in substances used topically in the eyes, the traditional use of eyebright as a topical compress currently cannot be recommended without professional support. Used internally at the amounts listed above, eyebright is generally safe. However, its safety during pregnancy and breast-feeding has not been proven.
At the time of writing, there were no well-known drug interactions with eyebright.
1. Weiss RF. Herbal Medicine. Gothenburg, Sweden: Ab Arcanum, 1988, 339–40.
2. Hoffman D. The Herbal Handbook: A User’s Guide to Medical Herbalism. Rochester, VT: Healing Arts Press, 1988, 136–7.
3. Weiss RF. Herbal Medicine. Gothenburg, Sweden: Ab Arcanum, 1988, 339–40.
4. Blumenthal M, Busse WR, Goldberg A, et al. (eds). The Complete Commission E Monographs: Therapeutic Guide to Herbal Medicines. Boston, MA: Integrative Medicine Communications, 1998, 329–30.
Copyright © 2007 Healthnotes, Inc. All rights reserved. www.healthnotes.com
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The information presented in Healthnotes is for informational purposes only. It is based on scientific studies (human, animal, or in vitro), clinical experience, or traditional usage as cited in each article. The results reported may not necessarily occur in all individuals. For many of the conditions discussed, treatment with prescription or over the counter medication is also available. Consult your doctor, practitioner, and/or pharmacist for any health problem and before using any supplements or before making any changes in prescribed medications. Information expires September 2008.
