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Eyebright
(Euphrasia)
Description
As its name suggests, eyebright found its use in folk medicine
as an eye tonic. Used in German medicine to stimulate the
Immune System, eyebright is said to fight colds, Hay Fever,
Coughs, congestion, and Sore Throats. Because it contains
tannins, eyebright exhibits astringent properties.
Herbal Uses
The use of eyebright dates
back to the Middle Ages, when the herb was used as an eyewash
for irritations and Infections. Eyebright is believed to have
been used to treat eye problems not so much because of its
effectiveness but because of the appearance of its bloodshot
petals (1). This idea is based on the medieval philosophy
the Signature of Doctrines, which states that the appearance
of herbs reveals their proper use.
Suggested Intakes
Traditional dosages consist
of boiled tea with 1 tablespoon of eyebright. This formula
is used as an eyewash or taken internally three times daily.
Eyebright should be used
in weak solutions when applying directly to the eye.
Supplemental Uses
Eyebright contains astringent
substances and volatile oils, which give the herb antibacterial
properties. Unfortunately, no scientific evidence exists to
verify its effectiveness.
Uses of eyebright:
Mild eye-wash
Reduces effects of Inflammation
Safety and Precautions
Few studies have been done
on the safety of eyebright. While it appears relatively safe
when ingested, it can cause Itching, redness, and tearing
of the Eyes (2).
Safety in young children,
nursing and pregnant women, and patients with severe liver
or kidney disease has not been determined.
Interactions and Contra-Indications
Avoid topical use in conjunction
with the Acne medication tretinoin (retinoic acid, Vitamin
A acid).
Eyebright may potentiate
the antibiotic action with Echinacea. Milk or cream eliminates
the interaction.
References
1. Lawrence Review
of Natural Products. Eyebright monograph. St. Louis, MO: Facts
and Comparisons Division, J.B. Lipincott Company, 1996.
2. Duke JA. CRC handbook of medicinal herbs. Boca Raton, FL:
CRC Press, 1985: 141.
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