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Omnia Sana · Plant Monograph

Eyebright

Euphrasia officinalis

Family OrobanchaceaeParts used Aerial parts (flowering herb)Also known as Euphrasy, Red eyebright

This monograph compiles 3 documented constituents, 2 pharmacological actions, 11 traditional / indicated uses, supported by 12 cited sources, drawn directly from the Omnia Sana plant database.

Key Constituents

Iridoid glycosides (notably aucubin)[10, 11]

Give the plant its anti-inflammatory action on irritated tissue.

Iridoid glycosidesGlycosides
Tannins[10]

Astringent constituents useful in watery, irritated eyes.

Tannins
Flavonoids (quercetin) and phenolic acids[10, 11]

Antioxidant constituents.

Phenolic acidsFlavonoidsQuercetin

Pharmacological Actions

Anti-inflammatory[4, 5, 10, 11]

Astringent and anti-inflammatory for eye irritation, redness and conjunctivitis (traditional, as an eye compress or bath) - an open prospective cohort of Euphrasia single-dose eye drops reported recovery or clear improvement in most patients with conjunctivitis

Astringent[10, 11]

Astringent and anti-inflammatory for eye irritation, redness and conjunctivitis (traditional, as an eye compress or bath) - an open prospective cohort of Euphrasia single-dose eye drops reported recovery or clear improvement in most patients with conjunctivitis

Traditional & Indicated Uses

Allergy / hay fever[10]Traditional · 1/10

Eases eye strain and watery, itchy eyes from allergy (hay fever / allergic conjunctivitis)

more plants for allergy / hay fever →detailed sources →
Arthritis / joint pain[10, 11]Traditional · 1/10

inferred from anti-inflammatory action

more plants for arthritis / joint pain →detailed sources →
Cough[10]Traditional · 1/10

Soothes upper-respiratory catarrh and mild infection (traditional)

more plants for cough →detailed sources →
Diarrhoea[10, 11]Traditional · 1/10

inferred from astringent action

more plants for diarrhoea →detailed sources →
Eye strain / eye health[10, 11, 12]Limited · 3/10

Astringent and anti-inflammatory for eye irritation, redness and conjunctivitis (traditional, as an eye compress or bath) - an open prospective cohort of Euphrasia single-dose eye drops reported recovery or clear improvement in most patients with conjunctivitis; Eases eye strain and watery, itchy eyes from allergy (hay fever / allergic conjunctivitis)

more plants for eye strain / eye health →detailed sources →
Fever[10]Traditional · 1/10

Eases eye strain and watery, itchy eyes from allergy (hay fever / allergic conjunctivitis)

more plants for fever →detailed sources →
Infection (general)[10]Traditional · 1/10

Soothes upper-respiratory catarrh and mild infection (traditional)

more plants for infection (general) →detailed sources →
Inflammation (general)[10, 11]Traditional · 1/10

inferred from anti-inflammatory action

more plants for inflammation (general) →detailed sources →
Respiratory support[10]Traditional · 1/10

Soothes upper-respiratory catarrh and mild infection (traditional)

more plants for respiratory support →detailed sources →
Skin irritation[10, 11]Traditional · 1/10

inferred from anti-inflammatory action

more plants for skin irritation →detailed sources →
Wounds[10, 11]Traditional · 1/10

inferred from astringent action

more plants for wounds →detailed sources →

Safety, Cautions & Contraindications

Safety note[10]Caution

CRITICAL: do not put non-sterile, homemade eyebright preparations directly into the eye - this risks serious eye infection. Use only commercially prepared sterile products in the eye, or apply a strained, cooled infusion as a compress over closed eyelids.

Safety note[10]Caution

Traditional use only; persistent eye symptoms, pain, discharge or vision change need assessment by an eye-care professional. Safety in pregnancy and breastfeeding is not established.

References

REF-0812, REF-0813, REF-0814, REF-2173, REF-2174, REF-2175, REF-2176, REF-2177, REF-2178

References & Sources

  1. Novy, P., Davidova, H., Serrano-Rojero, C.S., Rondevaldova, J. et al (2015) 'Composition and Antimicrobial Activity of Euphrasia rostkoviana Hayne Essential Oil', Evidence-Based Complementary and Alternative Medicine, 2015, pp. 734101. doi:10.1155/2015/734101 Preclinical
    https://doi.org/10.1155/2015/734101
  2. D'Ambrosio, M., Ciocarlan, A. and Aricu, A (2020) 'Minor acetylated metabolites from Euphrasia rostkoviana', Natural Product Research, 34(2), pp. 290-295. doi:10.1080/14786419.2018.1530227 Preclinical
    https://doi.org/10.1080/14786419.2018.1530227
  3. Ververis, A., Kyriakou, S., Paraskeva, H., Panayiotidis, M.I. et al (2024) 'Chemical Characterization and Assessment of the Neuroprotective Potential of Euphrasia officinalis', International Journal of Molecular Sciences, 25(23), pp. 12902. doi:10.3390/ijms252312902 Preclinical
    https://doi.org/10.3390/ijms252312902
  4. Meier-Girard, D., Gerstenberg, G., Stoffel, L., Kohler, T., Klein, S.D., Eschenmoser, M., Mitter, V.R., Nelle, M. and Wolf, U (2020) 'Euphrasia eye drops in preterm neonates with ocular discharge: a randomized double-blind placebo-controlled trial', Frontiers in Pediatrics, 8, pp. 449. doi:10.3389/fped.2020.00449 Randomized trial
    https://doi.org/10.3389/fped.2020.00449
  5. Liu, Y., Hwang, E., Ngo, H.T.T., Perumalsamy, H., Kim, Y.J., Li, L. and 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), pp. 3327. doi:10.3390/ijms19113327 Preclinical
    https://doi.org/10.3390/ijms19113327
  6. Porchezhian, E., Ansari, S.H. and Shreedharan, N.K (2000) 'Antihyperglycemic activity of Euphrasia officinale leaves', Fitoterapia, 71(5), pp. 522-526. doi:10.1016/s0367-326x(00)00204-5 Preclinical
    https://doi.org/10.1016/s0367-326x(00)00204-5
  7. Sticher, O. and Salama, O (1981) 'Iridoid glucosides from Euphrasia rostkoviana', Planta Medica, 42(6), pp. 122-123. doi:10.1055/s-2007-971584 Preclinical
    https://doi.org/10.1055/s-2007-971584
  8. Lorenz, P., Knittel, D.N., Conrad, J., Lotter, E.M., Heilmann, J., Stintzing, F.C. and Kammerer, D.R (2016) '1-Acetyl-3-[(3R)-hydroxyfatty acyl]glycerols: lipid compounds from Euphrasia rostkoviana Hayne and E. tetraquetra (Breb.) Arrond', Chemistry & Biodiversity, 13(5), pp. 602-612. doi:10.1002/cbdv.201500233 Preclinical
    https://doi.org/10.1002/cbdv.201500233
  9. Gawenda-Kempczynska, D., Olech, M., Balcerek, M., Nowak, R., Zaluski, T. and Zaluski, D (2022) 'Phenolic acids as chemotaxonomic markers able to differentiate the Euphrasia species', Phytochemistry, 203, pp. 113342. doi:10.1016/j.phytochem.2022.113342 Preclinical
    https://doi.org/10.1016/j.phytochem.2022.113342
  10. Herbal Reality (n.d.) 'Eyebright (Euphrasia officinalis): Benefits, Uses, Safety'. Available at: https://www.herbalreality.com/herb/eyebright/ Traditional / reference
    https://www.herbalreality.com/herb/eyebright/
  11. Paduch, R. and colleagues (2014) 'Assessment of Eyebright (Euphrasia officinalis L.) Extract Activity in Relation to Human Corneal Cells Using In Vitro Tests'. Available at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4115993/ Traditional / reference
    https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4115993/
  12. Stoss, M., Michels, C., Peter, E., Beutke, R. and Gorter, R.W (2000) 'Prospective cohort trial of Euphrasia single-dose eye drops in conjunctivitis', Journal of Alternative and Complementary Medicine, 6(6), pp. 499--508. doi:10.1089/acm.2000.6.499 Clinical study
    https://doi.org/10.1089/acm.2000.6.499

Record last updated 2026-06-20 · Provenance: website+pubmed+symptom-tool · Status: verified

This fact sheet is generated automatically from the Omnia Sana plant database and reflects its latest synced data. It is provided for educational purposes only and is not medical advice. Always consult a qualified practitioner before using medicinal plants.

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