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Eyebrow tissue expansion: an underappreciated entity in thyroid-associated orbitopathy
Archives of Ophthalmology (Chicago, Ill. : 1960)
|December 12, 2012
Summary
Eyebrow tissue expansion is a common sign in thyroid-associated orbitopathy (TAO). Standardized photographs and a grading key help consistently identify and assess this condition, aiding patient rehabilitation.
Area of Science:
- Ophthalmology
- Endocrinology
- Plastic Surgery
Background:
- Thyroid-associated orbitopathy (TAO) can cause significant facial disfigurement.
- Eyebrow tissue expansion is an underrecognized manifestation of TAO.
Purpose of the Study:
- To present photographic evidence of eyebrow tissue expansion in TAO patients.
- To establish a consistent grading system for eyebrow tissue expansion using standardized photographs.
Main Methods:
- Retrospective cohort study of 75 TAO patients (2000-2010).
- Development of a 4-point grading key for eyebrow tissue expansion severity.
- Grading of premorbid and morbid photographs by 6 masked observers.
Main Results:
- Average eyebrow expansion grade increased from 0.3 (premorbid) to 1.1 (morbid).
- High inter-rater reliability was achieved for grading morbid photographs (ICC > 0.91).
Conclusions:
- Eyebrow tissue expansion is a frequent finding in TAO.
- Standardized photographic grading is reliable for assessing brow involvement.
- Recognizing eyebrow changes is vital for TAO patient rehabilitation and surgical planning.
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