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Original research papers

Relation between head and eye movement and neck and shoulder complaints in presbyopic VDU users

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Abstract

Purpose

In subjects with neck-shoulder complaints at visual display unit (VDU) work places (>4 hours daily) the influence through a multifocal lens design on the head-eye-movement was examined.

Materials and methods

The head-eye-movement (head-eye-mover ratio horizontal) was determined in 100 presbyopic subjects with the Vision Print® (Essilor). The subjects were randomized and single-blind divided to three different interventions, group I: head-, II: eye-mover design, III: nearwork design, and a control group with no intervention.

Results

In presbyopic subjects with neck-shoulder discomfort a workstation seams to contribute to the manifestation of the pathological stereotype eye mover in the horizontal gaze shift. With the multifocal lenses a significant reduction in complaints in the shoulder and neck area for the groups I, II and III was found.

The change of the head-eye-mover ratio (horizontal) in the direction of increased head movement was shown tendencially in all supplied groups, but not in the control group.

Conclusion

If a patient with neck-shoulder complaints needs an optometric treatment (single or multifocal glasses) a modification of the work place is required and the supply with spectacles has to take place before a therapeutic intervention. On top of this a consultation for movement stimulating working conditions must take place.

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