Department of Physics of Condensed Matter, Optics area, University of Seville, Seville, Spain.
Department of Nursing and Physiotherapy, University of Cadiz, Cadiz, Spain.
PLoS One. 2019 Jan 15;14(1):e0209710. doi: 10.1371/journal.pone.0209710. eCollection 2019.
The aim of this study is to establish a relationship between non-strabismic binocular dysfunction and neck pain. One hundred twelve participants underwent binocular vision assessment by evaluating horizontal heterophoria, horizontal and vertical fusional vergence ranges and vergence facility. The subjects were classified into two groups: binocular anomalies and normal binocular function. Neck complaints were measured with the Neck Disability Index, visual analogue scale, cervical range of motion, deep-flexor muscle activation score (AS) and performance index (PI). Our results showed that participants with low AS had significantly altered values of lateral phoria (near) (mean = -6.99 SD ± 6.96 PD) and PFV (near) blur (mean = 9.49 SD ± 5.45 PD) against those who presented normal AS (lateral phoria (near) mean = -3.64 SD ± 6.37 PD; PFV (near) blur mean = 12.84 SD ± 6.20 PD). In addition, participants with NFV (near) recovery outside the norm had a significantly lower right side-bending (mean = 35.63 SD ± 8.35 PD) than those within the standard (mean = 39.64 SD ± 9 PD). The subjects with binocular vision impairment showed a diminished response to the deep cervical musculature, with low AS and PI, as well as a tendency to suffer from cervicalgia of more than three months' evolution and a lower range of motion.
本研究旨在建立非斜视性双眼功能障碍与颈部疼痛之间的关系。112 名参与者通过评估水平隐斜视、水平和垂直融合聚散范围以及聚散灵活性来进行双眼视觉评估。受试者被分为两组：双眼异常和正常双眼功能。颈部疼痛通过颈部残疾指数、视觉模拟评分、颈椎活动范围、深层屈肌激活评分（AS）和表现指数（PI）进行测量。我们的研究结果表明，与具有正常 AS 的患者相比，AS 值较低的患者在水平隐斜视（近距）（均值= -6.99 ± 6.96 PD）和近距模糊性的调节性聚散（PFV）（均值= 9.49 ± 5.45 PD）方面的差异具有统计学意义；而具有 NFV（近距）恢复异常的患者的右侧侧屈（均值= 35.63 ± 8.35 PD）明显低于正常范围内的患者（均值= 39.64 ± 9 PD）。双眼视觉障碍患者对深层颈肌的反应减弱，表现为 AS 和 PI 值较低，同时更容易患有超过三个月病程的颈痛和较低的活动范围。
