What is a symptom of strangulation that may not appear for hours or days?

Redness of the neck can indeed be a symptom of strangulation, but it typically manifests shortly after the incident rather than hours or days later. On the other hand, loss of consciousness can occur rapidly during an incident of strangulation and may be apparent almost immediately. Severe swelling is often a result of bruising and tissue injury, which can develop later but may still be noticeable within a short time frame.

Double vision, or diplopia, is a more insidious symptom that can arise due to the trauma sustained during strangulation. This can be related to damage to the structures that control eye movement or neural connections involved in vision. Its onset may be delayed, leading to situations where it does not appear until hours or even days after the incident, making it a significant symptom to monitor in cases of suspected strangulation.

In this context, double vision represents a critical and potentially delayed indicator of the physical effects of strangulation on the neurological system, which warrants attention for accurate assessment and intervention.