What is the Eyebright Plant and What Can You Use it For? - Step To Health

What is the Eyebright Plant and What Can You Use it For?

People have traditionally used the eyebright plant as a treatment for mild eye problems. Discover what the research says, and how this plant may benefit other areas of the body!
What is the Eyebright Plant and What Can You Use it For?

Last update: 01 October, 2021

The eyebright plant is an annual plant that measures between 2 and 10 inches tall. Originating in Europe, Asia, and North America, these plants have serrated oval-shaped leaves and white flowers with purple lines and yellow flecks at the center.

For centuries, traditional medicine has used the eyebright plant to alleviate different mild ocular problems like reddening and irritation. Similarly, it could help promote skin health and reduce blood sugar levels. In this article, we’ll go into detail about what you need to know!

Uses and benefits of the eyebright plant

close up on red and sore eye
One of the most common uses for the eyebright plant is to alleviate ocular redness and other problems that affect the eyes.

In Greek, Euphrasia means “joy” and refers to what people feel when this herb alleviates any discomfort they may be experiencing around their eyes. Discover the other possible benefits below.

It’s a source of vegetable compounds

The eyebright plant is rich in vegetable compounds like luteolin and quercetin. According to a study published in the Central European Journal of Immunology, these flavonoids can inhibit mast cells. These are the immune cells that are capable of releasing histamine, a compound that causes allergy symptoms like a runny nose or watering eyes.

However, specialists believe that traditionally, people would use the eyebright plant for the treatment of allergic rhinitis, also known as hay fever. This is because it has antihistaminic properties. However, this requires further investigation.

Additionally, there’s scientific evidence that the eyebright plant contains aucubin, a chemical compound that forms part of the iridoid group and stands out for its effects on our health.

According to a test-tube studyaucubin can reduce the scarring a heart attack causes. This is vital because they affect the heart’s ability to pump blood around the body.

Similarly, a study conducted on rodents found that this compound minimizes the scarring on heart tissue after a heart attack, which happens due to a reduction in the oxidative damage free radicals cause. However, this still requires further study.

Alleviation of mild eye problems

The name of the eyebright plant refers to the benefits it has for our ocular health. However, despite being heavily studied, the evidence is still limited.

An investigation published in the Balkan Medical Journal demonstrated that eyebright plant extract can contribute to controlling inflammation in the cornea cells.

Similarly, a test-tube study determined that a few eyedrops with eyebright plant and chamomile helped to protect the cornea cells from inflammation and damage caused by the sun.

Finally, another clinical study that worked with 65 adults with ocular inflammation trialed eyedrops with eyebright plant and rose extract on pollen allergy, wind, dust, infections, and ocular fatigue. They found that these drops completely alleviated the redness, swelling, burning, and sticky secretions around the eyes in approximately 81% of participants.

It also demonstrated that the other participants experienced notable improvement. However, this still requires human investigations that certify the efficiency of the eyebright plant in treating ocular irritation and inflammation.

Similarly, no evidence confirms whether the eyebright plant can alleviate the symptoms of eye illnesses like macular degeneration, cataracts, and glaucoma due to a lack of research.

Other benefits of the eyebright plant

In addition to improving our eye health, the eyebright plant could also benefit other parts of the body. The following are some of the more extended common uses:

  • Reduce blood sugar levels: An investigation published in Fitoterapia suggested that giving an oral extract of eyebright plant leaf to rodents with diabetes reduced their blood sugar levels by 34% in 2 hours. Additionally, the extract didn’t affect the glucose levels of the rodents without diabetes.
  • Fight harmful bacteria: A lab study found that the vegetable compounds in the eyebright plant tend to inhibit the growth of the bacteria associated with ocular infections like Staphylococcus aureus and Klebsiella pneumoniae.
  • Protect liver health: According to a study on animals and test tubes, the aucubin present in the eyebright plant should protect the liver from the damage that free radicals cause.
  • Reduce colds and coughs: Traditionally, people have used the eyebright plant to alleviate colds, coughs, and sinusitis.

Where can you find it?

You can find the eyebright plant in several forms, whether that’s as herbal tea, liquid extract, homeopathic granule, capsules, and eyedrops.

Possible side effects

eye with catarac close up
People that suffer from diabetes should consult their doctor before using the eyebright plant.

It’s important to be careful with the way that you use an eyebright plant to alleviate vision problems. Despite its popularity in homemade eyewashes to help with eye fatigue, these aren’t that safe. In fact, it could actually cause an infection.

With that in mind, we recommend you use sterile eye drops. However, if you’ve had eye surgery or wear contact lenses, you should consult an ophthalmologist before using eye drops.

Similarly, you should also consult your doctor if you take any medication for diabetes. This is because some studies suggest that the eyebright plant can reduce blood sugar levels.

Finally, because specialists haven’t tested this plant on pregnant or breastfeeding women, it’s best to avoid it if this is your case. Also, remember that this plant isn’t a certified treatment for any condition or illness. Thus, it shouldn’t substitute any given medication.

Dosage and recommendations

There’s not a specific dosage of the plant that will work for everyone. However, some products manage the quantity according to the form it comes in. Here are some of them:

  • Tea: Between 1 and 2 teaspoons of dried eyebright plant or 1 teabag per cup of hot water. Because this tea usually has a bit of a bitter taste, you can sweeten it if you like.
  • Liquid extract: Between 1 and 2 milliliters, 3 times a day maximum.
  • Homeopathic granules: Between 3 and 5 granules diluted under your tongue a day with a concentration of 30c.
  • Capsules: Between 400 and 470 milligrams, 2 to 3 times a day.
  • Eyedrops: 1 or more drops per eye, when necessary, 3 to 5 times a day.

Is the eyebright plant effective for visual health?

The eyebright plant is small in size and originates in Europe, Asia, and North America. It stands out with its white flowers, purple lines, and a yellow center.

Similarly, its name refers to the benefit it’s most known for, which is promoting ocular health. In Greek, Euphrasia means “joy.” This is what people experience after this herb alleviates eye discomfort.

Additionally, although people have been using it for centuries to alleviate eye-related issues, scientists haven’t confirmed all of its benefits. For that reason, you shouldn’t substitute any kind of given treatment for different forms of this plant.

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  • Shaik, Y., Caraffa, A., Ronconi, G., Lessiani, G., & Conti, P. (2018). Impact of polyphenols on mast cells with special emphasis on the effect of quercetin and luteolin. Central-European journal of immunology, 43(4), 476–481. https://doi.org/10.5114/ceji.2018.81347
  • Mari, A., Ciocarlan, A., Aiello, N., Scartezzini, F., Pizza, C., & D’Ambrosio, M. (2017). Research survey on iridoid and phenylethanoid glycosides among seven populations of Euphrasia rostkoviana Hayne from the Alps. Phytochemistry, 137, 72–80. https://doi.org/10.1016/j.phytochem.2017.02.013
  • Xiao, Y., Chang, W., Wu, Q. Q., Jiang, X. H., Duan, M. X., Jin, Y. G., & Tang, Q. Z. (2018). Aucubin Protects against TGFβ1-Induced Cardiac Fibroblasts Activation by Mediating the AMPKα/mTOR Signaling Pathway. Planta medica, 84(2), 91–99. https://doi.org/10.1055/s-0043-118663
  • Yang, Z., Wu, Q. Q., Xiao, Y., Duan, M. X., Liu, C., Yuan, Y., Meng, Y. Y., Liao, H. H., & Tang, Q. Z. (2018). Aucubin Protects against Myocardial Infarction-Induced Cardiac Remodeling via nNOS/NO-Regulated Oxidative Stress. Oxidative medicine and cellular longevity, 2018, 4327901. https://doi.org/10.1155/2018/4327901
  • Paduch, R., Woźniak, A., Niedziela, P., & Rejdak, R. (2014). Assessment of eyebright (euphrasia officinalis L.) extract activity in relation to human corneal cells using in vitro tests. Balkan medical journal, 31(1), 29–36. https://doi.org/10.5152/balkanmedj.2014.8377
  • Bigagli, E., Cinci, L., D’Ambrosio, M., & Luceri, C. (2017). Pharmacological activities of an eye drop containing Matricaria chamomilla and Euphrasia officinalis extracts in UVB-induced oxidative stress and inflammation of human corneal cells. Journal of photochemistry and photobiology. B, Biology, 173, 618–625. https://doi.org/10.1016/j.jphotobiol.2017.06.031
  • Stoss, M., Michels, C., Peter, E., Beutke, R., & Gorter, R. W. (2000). Prospective cohort trial of Euphrasia single-dose eye drops in conjunctivitis. Journal of alternative and complementary medicine (New York, N.Y.), 6(6), 499–508. https://doi.org/10.1089/acm.2000.6.499
  • Liu, Y., Hwang, E., Ngo, H., Perumalsamy, H., Kim, Y. J., Li, L., & Yi, T. H. (2018). Protective Effects of Euphrasia officinalis Extract against Ultraviolet B-Induced Photoaging in Normal Human Dermal Fibroblasts. International journal of molecular sciences, 19(11), 3327. https://doi.org/10.3390/ijms19113327
  • Porchezhian, E., Ansari, S. H., & Shreedharan, N. K. (2000). Antihyperglycemic activity of Euphrasia officinale leaves. Fitoterapia, 71(5), 522–526. https://doi.org/10.1016/s0367-326x(00)00204-5
  • Novy, P., Davidova, H., Serrano-Rojero, C. S., Rondevaldova, J., Pulkrabek, J., & Kokoska, L. (2015). Composition and Antimicrobial Activity of Euphrasia rostkoviana Hayne Essential Oil. Evidence-based complementary and alternative medicine : eCAM, 2015, 734101. https://doi.org/10.1155/2015/734101
  • Lv, P. Y., Feng, H., Huang, W. H., Tian, Y. Y., Wang, Y. Q., Qin, Y. H., Li, X. H., Hu, K., Zhou, H. H., & Ouyang, D. S. (2017). Aucubin and its hydrolytic derivative attenuate activation of hepatic stellate cells via modulation of TGF-β stimulation. Environmental toxicology and pharmacology, 50, 234–239. https://doi.org/10.1016/j.etap.2017.02.012