Related Experiment Video
Updated: Jun 26, 2026
An Acute Retinal Model for Evaluating Blood Retinal Barrier Breach and Potential Drugs for Treatment
Published on: September 13, 2016
An Update to Biomechanical and Biochemical Principles of Retinal Injury in Child Abuse
Kourosh Shahraki1, Donny W Suh1
1Department of Ophthalmology, Gavin Herbert Eye Institute, University of California Irvine School of Medicine, Irvine, CA 92697, USA.
Insights
Abusive head trauma (AHT), including shaken baby syndrome (SBS), can cause dangerous internal injuries like retinal injury (RI). This review examines the biomechanics and biochemistry of AHT/SBS-induced RI, highlighting experimental models for studying retinal hemorrhage.
Area of Science:
- Pediatrics
- Ophthalmology
- Forensic Medicine
Background:
- Abusive head trauma (AHT), a severe form of child abuse, encompasses shaken baby syndrome (SBS).
- Retinal injury (RI), often presenting as retinal hemorrhage (RH), is a critical internal injury in AHT/SBS that may not have external signs.
- Untreated RI can lead to permanent visual loss, underscoring the importance of understanding its mechanisms.
Purpose of the Study:
- To provide an updated review of the traumatology of AHT/SBS-induced RI.
- To explore the biomechanical and biochemical factors contributing to RI in AHT/SBS.
- To discuss experimental models developed for studying AHT/SBS-related retinal hemorrhage.
Main Methods:
- Literature review focusing on traumatology, biomechanics, and biochemistry of AHT/SBS-induced RI.
- Analysis of experimental models used in recent research.
- Synthesis of current knowledge on retinal hemorrhage in the context of abusive head trauma.
Main Results:
- AHT/SBS can cause severe internal injuries, including retinal injury, which may not be externally visible.
- Acceleration-deceleration forces are the presumed cause of RI during abusive shaking.
- Significant gaps exist in understanding the biomechanical and biochemical aspects of AHT/SBS-induced RI.
Conclusions:
- Further research using realistic experimental models is crucial for a comprehensive understanding of AHT/SBS-induced RI.
- Investigating the biomechanical and biochemical features of RI is essential for developing diagnostic and preventative strategies.
- Improved knowledge can aid in the identification and management of abusive head trauma cases involving retinal injury.
Abstract:
Abusive head trauma (AHT) is an extreme form of physical child abuse, a subset of which is shaken baby syndrome (SBS). While traumatic injury in children is most readily observed as marks of contusion on the body, AHT/SBS may result in internal injuries that can put the life of the child in danger. One pivotal sign associated with AHT/SBS that cannot be spotted with the naked eye is retinal injury (RI), an early sign of which is retinal hemorrhage (RH) in cases with rupture of the retinal vasculature. If not addressed, RI can lead to irreversible outcomes, such as visual loss. It is widely assumed that the major cause of RI is acceleration-deceleration forces that are repeatedly imposed on the patient during abusive shaking. Still, due to the controversial nature of this type of injury, few investigations have ever sought to delve into its biomechanical and/or biochemical features using realistic models. As such, our knowledge regarding AHT-/SBS-induced RI is significantly lacking. In this mini-review, we aim to provide an up-to-date account of the traumatology of AHT-/SBS-induced RI, as well as its biomechanical and biochemical features, while focusing on some of the experimental models that have been developed in recent years for studying retinal hemorrhage in the context of AHT/SBS.
