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Impression cytology in atopic dermatitis

M Dogru1, C Katakami, N Nakagawa

  • 1Department of Ophthalmology, Kobe University School of Medicine, Japan.

Ophthalmology
|August 26, 1998
PubMed
Summary
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Patients with atopic dermatitis (AD) experience ocular surface disorders, including goblet cell loss and squamous metaplasia, which worsen with disease flare-ups, not duration. These findings highlight the impact of allergic reactions and tear dysfunction on eye health in AD patients.

Area of Science:

  • Ophthalmology
  • Dermatology
  • Immunology

Background:

  • Atopic dermatitis (AD) is a chronic inflammatory skin condition with potential systemic manifestations.
  • Ocular surface complications are frequently observed in patients with AD, impacting their quality of life.

Purpose of the Study:

  • To characterize the specific ocular surface disorders present in patients diagnosed with atopic dermatitis (AD).
  • To investigate the relationship between the duration and recurrence of AD and the severity of ocular surface changes.

Main Methods:

  • A prospective case-controlled study involving 44 patients with active AD and 22 healthy controls.
  • Ophthalmic examinations included tear film break-up time (BUT), Schirmer test, and conjunctival impression cytology.
  • Tear function, goblet cell density, and conjunctival squamous metaplasia were compared between groups.

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Main Results:

  • Patients with AD exhibited significantly lower BUT and Schirmer test values compared to controls.
  • Conjunctival impression cytology revealed goblet cell loss and squamous metaplasia, correlated with AD recurrence frequency, not disease duration.
  • Facial atopy and allergic keratoconjunctivitis (AKC) were significantly associated with ocular surface metaplasia (P < 0.001).

Conclusions:

  • Ocular surface disorder in AD is characterized by goblet cell loss and squamous metaplasia, worsening with increased flare-ups rather than disease duration.
  • Allergic reactions, impaired tear quality, and quantity are likely key factors in the development of atopic ocular surface disease.