The global prevalence of horizontal strabismus: A systematic review and meta-analysis with a focus on ethnic variation.
Christopher S von Bartheld, Molly M Hagen, Jiayi Jiang et al.
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In 30 seconds
This systematic review and meta-analysis examined the global prevalence of horizontal strabismus, specifically esotropia and exotropia, across various ethnic groups. The study analyzed data from 315 population-based and 374 clinic-based studies, revealing a worldwide prevalence of 1.81% in the current generation, affecting approximately 138.5 million individuals. The findings highlight significant ethnic variations in prevalence rates.
Key findings
- Worldwide prevalence of horizontal strabismus is estimated at 1.81%, affecting 138.5 million people.
- Current generation prevalence includes 60.0 million with esotropia (0.67%) and 87.5 million with exotropia (1.14%).
- Previous generation prevalence was 1.64%, with 50.5 million having esotropia and 36.0 million with exotropia.
- Ethnic groups show significant differences in patterns and ratios of esotropia and exotropia prevalence.
Why it matters
Understanding the prevalence and ethnic variations of horizontal strabismus is crucial for clinicians to identify at-risk populations and tailor screening and intervention strategies accordingly. This knowledge can enhance patient care and inform public health initiatives.