Purpose: 

To investigate the relationship between sleep position preference and eyebrow and eyelid position and degree of upper eyelid dermatochalasis.

Methods: 

A prospective study evaluating the impact of sleep position on facial asymmetry was conducted at an academic ophthalmology department. Eligibility criteria included the absence of periocular-altering trauma or surgery, contact lens use, or other periorbital disease processes. Patients reported their sleep position preference on a questionnaire. Standardized digital photographs of patients were obtained, and Image J software was used for measurements and converted into millimeters based on a standard corneal limbus-to-limbus ratio. Upper and lower eyelid position, upper eyelid dermatochalasis, and eyebrow position were assessed by the following image-derived measurements: marginal reflex distance 1 (iMRD1), marginal reflex distance 2 (iMRD2), tarsal platform show (iTPS), and central brow position (iBP). These results were compared with the patient reported sleep position preference to determine correlation.

Results: 

Seventy-one patients were enrolled and reported the following sleep position preferences: 28 (right), 24 (left), 13 (both), and 6 (supine). Patients with a right- or left-sided preference demonstrated lower iMRD1 measurements for the preferred sleep side (p < 0.0004) with no other significant difference in periorbital measurements. A larger degree of upper eyelid height (iMRD1) asymmetry was observed among patients with a sleep side preference.

Conclusion: 

Patients with a predominant sleep side preference demonstrate a significant increase in ipsilateral upper eyelid asymmetry and an inferior upper eyelid position on the sleep side. There were no differences noted in lower eyelid position, central eyebrow position, or amount of upper eyelid dermatochalasis.

中文翻译：

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睡眠姿势偏好对眼睑和眉毛对称性的影响

目的： 

探讨睡眠姿势偏好与眉眼睑位置及上眼睑皮肤松弛症程度的关系。

方法： 

在学术眼科进行了一项评估睡眠姿势对面部不对称影响的前瞻性研究。资格标准包括没有改变眼周的创伤或手术、隐形眼镜使用或其他眶周疾病过程。患者在问卷中报告了他们对睡眠姿势的偏好。获得患者的标准化数码照片，并使用 Image J 软件进行测量，并根据标准角膜缘与角膜缘的比率转换为毫米。通过以下图像衍生测量评估上下眼睑位置、上眼睑皮肤松弛症和眉毛位置：边缘反射距离 1 (iMRD1)、边缘反射距离 2 (iMRD2)、睑板显示 (iTPS) 和中央眉毛位置(iBP)。

结果： 

招募了 71 名患者并报告了以下睡眠姿势偏好：28 名（右）、24 名（左）、13 名（两者）和 6 名（仰卧位）。偏向右侧或左侧的患者表现出偏爱睡眠侧的 iMRD1 测量值较低（p < 0.0004），而眶周测量值没有其他显着差异。在睡眠侧偏好的患者中观察到更大程度的上眼睑高度（iMRD1）不对称。

结论： 

睡眠侧偏好占主导地位的患者表现出同侧上眼睑不对称性显着增加，睡眠侧上眼睑位置较低。下眼睑位置、眉毛中央位置或上眼睑皮肤松弛症的数量没有差异。