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  Indian J Med Microbiol
 

Figure 1: Cervical Range of MotionR Device. Photograph illustrating measurements of head posture used to collect anomalous head position data. The device is placed on the head prior to visual acuity testing. The instrument ensures accurate determination of the head position (eccentric null zone position) in pitch, yaw, and roll during routine binocular best-corrected distance acuity testing

Figure 1: Cervical Range of Motion<sup>R</sup> Device. Photograph illustrating measurements of head posture used to collect anomalous head position data. The device is placed on the head prior to visual acuity testing. The instrument ensures accurate determination of the head position (eccentric null zone position) in pitch, yaw, and roll during routine binocular best-corrected distance acuity testing