Which category in the GCS measures eye response?

The Glasgow Coma Scale (GCS) is a tool used to assess a patient's level of consciousness and neurological functioning, specifically in trauma and emergency situations. One of the key components of the GCS is the assessment of eye response, which provides insights into the patient's neurological status.

The eye response category evaluates how well a patient can open their eyes in response to stimuli. This includes measuring whether the patient opens their eyes spontaneously, in response to verbal prompts, or only to painful stimuli. Full scores in this category reflect higher levels of consciousness, while lower scores indicate decreased responsiveness or potential impairment due to injury or illness.

In this context, the correct choice highlights the specific aspect of the GCS that pertains solely to eye movements, differentiating it from other responses such as motor or verbal responses, which are assessed in their own distinct categories of the scale. Thus, identifying the 'Eyes' category as the measure of eye response aligns accurately with how the GCS is structured and utilized in clinical practice.