Eyelid Disorders Highly Prevalent in Ophthalmology Practice; Results From a Large International Epidemiological Study in Eleven Countries.

Purpose: Anecdotal evidence suggests that eyelid disorders are common, although estimates of its prevalence vary. A cross‐sectional epidemiological survey was conducted among patients attending routine ophthalmological consultations to determine the prevalence of eyelid disorders, Meibomian Gland Dysfunction (MGD) and related pathologies (in particular ocular surface disease). Method: During the consultation a quality of life questionnaire and a clinical examination were completed by the ophthalmologist. In eleven countries, 349 investigator ophthalmologists were recruited who provided data from 6525 patients. Results: Patients were predominantly female (61.6%), mean age 57.0 ± 17.6 y. Eyelid disorders were diagnosed in 78.3% of patients and were statistically associated with atopic dermatitis, seborrheic dermatitis, dry eye, age‐related macular degeneration, diabetes, cataract, allergy and MGD. Eyelid abnormalities were identified in 38.5% of patients; abnormalities of the eyelid margin in 59.8%, and abnormal meibomian gland secretion in 34.5%. Conjunctival or corneal abnormalities were observed in 64.9% and 27.9% of patients respectively. MGD was diagnosed in 54.0% of patients and was statistically significantly associated with the presence of eyelid disorders and eyelid margin abnormality. Dry eye was diagnosed in 61.2% of patients and was concomitant with MGD in most cases. Most patients reported some degree of impairment of vision and daily/work activities. These effects on daily life were associated with the presence of MGD. Impact on contact lens usage and on emotions and quality of sleep were also reported. Conclusion: In conclusion, eyelid disorders were highly prevalent in this clinic population. Routine ophthalmological consultations may provide a useful opportunity to improve patients' quality of life and to modify topical therapy where this is an aetiological factor in eyelid disorders. [ABSTRACT FROM AUTHOR]