This Letter to the Editor is in response to Stevens and colleagues, who presented a study about pupillometry in patients with traumatic brain injury. They did not find any correlation between pupil diameter and intracranial pressure. We agree with the clinical importance of pupil assessment and we would like to suggest the application of transorbital ultrasound for this evaluation. This approach has been proposed in the past and, with our work, we show the possible quantification of symmetry of pupil diameter variation in response to a stimulus. This approach may represent a proficient and safe method for patients' supervision.

中文翻译：

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瞳孔超声评价：“黑洞”的秘密揭晓。

写给编辑的这封信是对史蒂文斯及其同事的回应，他们发表了关于脑外伤患者瞳孔测量的研究。他们没有发现瞳孔直径和颅内压之间有任何相关性。我们同意学生评估的临床重要性，并且我们建议在此评估中应用经眼眶超声检查。过去已经提出了这种方法，并且随着我们的工作，我们展示了响应刺激可以对瞳孔直径变化的对称性进行量化的可能性。这种方法可能代表了一种有效且安全的患者监护方法。