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| Name | Class |
|---|---|
| Oslo University Hospital | OTHER |
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A clinical characterization of a large cohort of patients with different severities of AD and ocular symptoms/atopic keratoconjunktivitis (AKC). The data will contribute to assess the frequency of complications in order to give a rationale for focused prevention and treatment strategy.
Atopic Dermatitis (AD), a very common inflammatory skin condition of child and adulthood, is strongly associated with ocular disease. Accordingly, about 20% experience conjunctivitis at some point, and many have chronic disease. Atopic keratoconjunctivitis (AKC) is the most feared as it may lead to blindness. Little is known about the etiology, the immune infiltrate, as well as predictive factors of AKC and the clinical characteristics of AD patients who develop this entity. We expect this project to enable clinicians to better identify AKC patients in the future as well as improve the understanding of the pathogenesis of AKC.
The ocular findings will be compared between AD severity and a control group without ocular symptoms.
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| Measure | Description | Time Frame |
|---|---|---|
| Bulbar redness (BR) score | Difference in Bulbar redness (BR) score (Keratograph 5M, R-scan). Scale from 0-4. A higher score indicates more severe BR. | 1 day At examination |
| Measure | Description | Time Frame |
|---|---|---|
| Inferior Tear Meniscus Height (TMH) | Difference in Inferior Tear Meniscus Height (TMH) (Keratograph 5M) | 1 day Cross-sectional at examination (one time) |
| Non-invasive Keratograph Break-Up Time (NIKBUT) |
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Inclusion Criteria:
Exclusion Criteria:
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AD patients with current or previous ocular symptoms suspected to be atopic keratoconjunctivitis
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| Name | Affiliation | Role |
|---|---|---|
| Steffen Heegaard, MD, DMSci | Department of Ophthalmology, Rigshospitalet-Glostrup | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Department of Ophthalmology, Rigshospitalet-Glostrup | Glostrup Municipality | 2600 | Denmark |
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Collection of tear samples, brush swabs and conjunctival imprints
Difference in Non-invasive Keratograph Break-Up Time (NIKBUT) (Keratograph 5M)
| 1 day Cross-sectional at examination (one time) |
| Meibo-Scan | Difference in Meibo-Scan (Keratograph 5M). Scale from 0-3. A higher score indicates more morphological changes. | 1 day Cross-sectional at examination (one time) |
| Ocular surface staining | Difference in Ocular surface staining | 1 day Cross-sectional at examination (one time) |
| Osmolarity of the tears | Difference in Osmolarity of the tears (TearLab™) | 1 day Cross-sectional at examination (one time) |
| Fluorescein tear break up time (TFBUT) | Difference in Fluorescein tear break up time (TFBUT) | 1 day Cross-sectional at examination (one time) |
| Schirmer's I test | Difference in Schirmer's I test | 1 day Cross-sectional at examination (one time) |
| Intraocular pressure (IOP) | Difference in Intraocular pressure (IOP) | 1 day Cross-sectional at examination (one time) |
| Pentacam investigations for detection of keratoconus | Difference in the frequency of keratoconus | 1 day Cross-sectional at examination (one time) |
| Tear cytokine analysis | Difference in the levels of inflammatory cytokines in the tears | 1 day Cross-sectional at examination (one time) |
| Tear proteomic analysis | Difference in the protein profile in the tears | 1 day Cross-sectional at examination (one time) |
| Tear MUC5AC analysis | Difference in the level of MUC5AC in tears | 1 day Cross-sectional at examination (one time) |
| Goblet cell density | Difference in goblet cells density | 1 day Cross-sectional at examination (one time) |
| Microbiome analysis | Difference in the amount of different species of the Microbiome of the ocular surface | 1 day Cross-sectional at examination (one time) |
| Investigation of the infestation of Demodex | Difference in the amount of Demodex mites in the eyelashes/eyelids with non-invasive in vivo confocal microscopy | 1 day Cross-sectional at examination (one time) |
| OSDI-score | Difference in the Ocular Surface Disease Index (OSDI) score. A 12-item questionnaire that gives a score on a scale from 0 to 100, where higher scores represent greater disability (mild [13-22 points], moderate [23-32 points], and severe [33-100 points]). | 1 day Cross-sectional at examination (one time) |
| PO-SCORAD | Difference in the Patient-Oriented SCORing of Atopic Dermatitis (POSCORAD) score. A validated self-assessment tool to clinical evaluate AD severity, using subjective and objective criteria. A higher score indicates more severe AD. | 1 day Cross-sectional at examination (one time) |
| POEM | Difference in the Patient Oriented Eczema Measure (POEM) score. A validated self-assessment tool to clinical evaluate AD severity. A scale from 0-28. A higher score indicates more severe AD. | 1 day Cross-sectional at examination (one time) |
| EASI | Difference in Eczema Area and Severity Index (EASI) score. A tool used to measure the extent (area) and severity of atopic eczema. A scale from 0-72. A higher score indicates more severe AD. | 1 day Cross-sectional at examination (one time) |
| best-corrected logMAR acuity | Difference in best-corrected logMAR acuity | 1 day Cross-sectional at examination (one time) |
| Slit lamp examination | Difference in observations with slit lamp | 1 day Cross-sectional at examination (one time) |