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Related Experiment Videos

Allergic contact blepharoconjunctivitis due to phenylephrine eye drops.

A Resano1, C Esteve, M Fernández Benítez

  • 1Department of Allergology and Clinical Immunology, Faculty of Medicine, University of Navarra, Spain.

Journal of Investigational Allergology & Clinical Immunology
|April 23, 1999
PubMed
Summary

Two patients developed allergic blepharoconjunctivitis from phenylephrine hydrochloride eye drops. Patch testing confirmed sensitization to this common ophthalmic decongestant.

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Area of Science:

  • Ophthalmology
  • Allergology
  • Clinical Pharmacology

Background:

  • Phenylephrine hydrochloride is a widely used ophthalmic vasoconstrictor.
  • Ocular surface hypersensitivity reactions can occur with topical medications.
  • Blepharoconjunctivitis is a common inflammatory condition of the eyelids and conjunctiva.

Observation:

  • Two patients presented with acute onset blepharoconjunctivitis during ophthalmologic examinations.
  • Symptoms included redness, swelling, and itching of the eyelids and conjunctiva.
  • The onset of symptoms correlated with the use of phenylephrine hydrochloride eye drops.

Findings:

  • Patch testing revealed positive reactions to phenylephrine hydrochloride in both affected patients.
  • Standardized patch testing confirmed specific sensitization to phenylephrine hydrochloride.

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  • All other tested ophthalmic preparations, including vehicle controls, were negative, ruling out other allergens.

    • Implications:

    • Phenylephrine hydrochloride can act as a contact allergen, leading to allergic blepharoconjunctivitis.
    • Ophthalmologists should consider phenylephrine hydrochloride as a potential cause of hypersensitivity reactions.
    • Awareness and diagnostic patch testing are crucial for identifying and managing phenylephrine-induced ocular allergies.