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Prevalence and Causes of Subconjunctival Hemorrhage in Children
Insights
Subconjunctival hemorrhage (SCH) is rare in children, with trauma being the most frequent cause. All children with SCH require thorough examination for associated injuries.
Area of Science:
- Pediatric Ophthalmology
- Ocular Trauma
- Child Abuse Detection
Background:
- Subconjunctival hemorrhage (SCH) is a potential indicator of abusive head trauma in children.
- Limited data exists on the prevalence and causes of SCH in pediatric populations.
Purpose of the Study:
- To determine the prevalence of subconjunctival hemorrhage in children.
- To identify the primary causes of subconjunctival hemorrhage in pediatric patients.
Main Methods:
- Retrospective cross-sectional study of pediatric ophthalmology outpatient visits over four years.
- Analysis of patient history, ocular and non-ocular findings, and diagnostic studies.
- Prevalence calculation with and without exclusion of post-surgical cases.
Main Results:
- A total of 33,990 children were studied, with 949 cases of SCH (1.1%).
- Excluding surgery, 313 cases (0.4%) were identified, predominantly due to trauma (83%) and ocular inflammation (13%).
- Trauma and inflammation accounted for 94-97% of all pediatric SCH cases across all age groups.
Conclusions:
- Subconjunctival hemorrhage is an infrequent finding in children.
- Trauma is the leading cause of SCH in pediatric patients.
- Comprehensive evaluation is crucial for all children with SCH to detect potential trauma.
Objective:
Subconjunctival hemorrhage (SCH) is a reported sign of occult abusive injury, but there are limited published data about SCH during childhood. We sought to determine the prevalence and causes of SCH in children.
Methods:
This is a retrospective cross-sectional study of children seen by pediatric ophthalmologists in an outpatient setting over 4 years. Primary outcomes were prevalence and causes of SCH, based on history, physical ocular and nonocular findings, and laboratory and imaging studies. Subconjunctival hemorrhage prevalence was determined including and excluding eye surgery to reduce bias in the prevalence estimate.
Results:
We studied 33,990 children, who underwent 86,277 examinations (median age, 5 years; range, 2 days to 18 years; 9282 younger than 2 years, 13,447 age 2-7 years, 11,261 age 8-18 years). There were 949 cases of SCH (1.1%; 95% confidence interval, 1.0-1.2). When surgery was excluded, there were 313 cases (prevalence, 0.4%; 95% confidence interval, 0.3-0.4), of which 261 (83%) were due to trauma; 40 (13%) ocular surface inflammation, including infectious conjunctivitis; 7 (2%) orbital or conjunctival lesion; 3 (1%) vessel rupture from choking or cough; and 2 (1%) coagulopathy related. Across all ages, including less than 2 years, trauma and inflammation together accounted for 94% to 97% of all cases of SCH.
Conclusions:
Subconjunctival hemorrhage is uncommon in children. The great majority of cases are due to trauma. All children with SCH, including infants and young children, should be closely examined to identify other ocular or nonocular signs of trauma.
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