Dry Eye Disease Prevalence and Associated Risk Factors Among the Middle East Population: A Systematic Review and Meta-Analysis.

Dry eye disease (DED) is a common condition characterized by a loss of the tear film function, leading to symptoms of ocular discomfort and damage to the ocular surface. The prevalence and associated risk factors of DED may vary by region due to environmental, cultural, and genetic differences. The aim of the present study is to systematically review and analyze the prevalence and risk factors of DED in the Middle East (ME) region. This study adhered to the PRISMA 2020 guidelines. A comprehensive literature search was conducted using databases such as Web of Science, Scopus, Google Scholar, and PubMed to identify relevant studies published from January 2004 to July 2024. Studies included in the review were those that provided data on the prevalence and risk factors of DED in Middle Eastern populations. Data were extracted and analyzed to determine overall pooled prevalence and associated risk factors using a random-effects model. The study protocol was registered in the International Prospective Register of Systematic Reviews (PROSPERO) with the registration number CRD42024583897. The meta-analysis included 17 studies from 10 countries with a total of 22,087 subjects. The estimated pooled prevalence of DED in the ME region was 28.33% (95% CI: 27.74-28.93). The primary risk factors include age, female gender, and smoking. Other risks are contact lens use, prolonged screen time (over six hours daily), diabetes, glaucoma medications, allergies, autoimmune diseases, refractive surgery, arthritis, high cholesterol, acne treatments, antihistamines, antidepressants, thyroid disease, and a history of conjunctival infections or corneal abrasions. The prevalence of DED in Middle Eastern countries was higher than the global estimate, highlighting significant regional variation. Common risk factors for DED include older age, female gender, and smoking. These findings underscore the need for targeted prevention and management strategies that address the specific risk factors prevalent in the Middle Eastern population.