The
common name eyebright refers to the plant's long traditional use
in treating eye conditions. Eyebright has anti-inflammatory and
astringent properties.
It may be used to treat the redness,
swelling and visual disturbances caused by blepharitis and conjunctivitis.
It tightens the mucous membranes of the eye and thus appears to
relieve inflammation. It also reduces catarrh and is therefore often
used for infectious and allergic conditions affecting the eyes,
middle ear, sinuses and nasal passages. It may be taken internally
for sinusitis, hay fever, upper respiratory tract infections, colds,
coughs, and sore throats. The dried herb is a ingredient of herbal
smoking mixtures, used in the treatment of chronic bronchial colds
Eyebright is also used for eyestrain.
As an ophthalmic, an infusion of the plant can be taken internally
or used as an eye wash. Alternatively, the diluted juice can be
dropped into the eyes. Some
caution should be exercised, experimentally it can induce side effects
including dim vision. The plant's astringency makes it inappropriate
for treating dry or stuffy congestion.
Eyebright can also be used externally
as a poultice to aid the healing of wounds.
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