Which of the following is a common eye indicator of someone under the influence of dissociative anesthetics?

The indication of normal pupil size is significant when considering someone under the influence of dissociative anesthetics. These substances, such as PCP (phencyclidine) or ketamine, typically do not cause the same level of pupil dilation commonly associated with other categories of drugs like stimulants or hallucinogens. Instead, an individual under the influence of dissociative anesthetics may maintain a more typical pupil size, which distinguishes it from other substances that produce notable pupil changes.

In contrast, rapid eye movement is not a distinctive sign of this influence and is more commonly associated with different states such as REM sleep or certain other drug effects. Excessive tearing is not characteristic of dissociative anesthetics either but can result from other factors like allergies or irritants. Dilated pupils are more associated with stimulants and hallucinogens rather than dissociative substances, making normal pupil size a clear marker for the effects of dissociative anesthetics.