Which type of ERG is utilized to track intraocular foreign bodies?

The serial ERG is specifically utilized to track intraocular foreign bodies due to its ability to measure the retinal response over time in response to repeated stimuli. This type of electroretinogram allows for monitoring changes in retinal function, particularly after surgical interventions, by providing a series of responses that can indicate any alterations in the health of the retina surrounding the foreign body. By assessing how the retina responds to light stimuli at multiple intervals, clinicians can determine if the foreign body is affecting retinal function, whether positively or negatively.

In instances where foreign bodies are present, the serial ERG's sequential nature helps to identify early signs of retinal damage or dysfunction. This capability is crucial for managing the patient's care and can inform decisions regarding further intervention or monitoring strategies.