The Impact of Visual Guided Order Picking on Ocular Comfort, Ocular Surface and Tear Function.
OBJECTIVE
We investigated the effects of a visual picking system on ocular comfort, the ocular surface and tear function compared to those of a voice guided picking solution.


METHODS
Prospective, observational, cohort study.


METHODS



METHODS
Institutional.


METHODS
A total of 25 young asymptomatic volunteers performed commissioning over 10 hours on two consecutive days.


METHODS
The operators were guided in the picking process by two different picking solutions, either visually or by voice while their subjective symptoms and ocular surface and tear function parameters were recorded.


RESULTS
The visual analogue scale (VAS) values, according to subjective dry eye symptoms, in the visual condition were significantly higher at the end of the commissioning than the baseline measurements. In the voice condition, the VAS values remained stable during the commissioning. The tear break-up time (BUT) values declined significantly in the visual condition (pre-task: 16.6 sec and post-task: 9.6 sec) in the right eyes, that were exposed to the displays, the left eyes in the visual condition showed only a minor decline, whereas the BUT values in the voice condition remained constant (right eyes) or even increased (left eyes) over the time. No significant differences in the tear meniscus height values before and after the commissioning were observed in either condition.


CONCLUSIONS
In our study, the use of visually guided picking solutions was correlated with post-task subjective symptoms and tear film instability.
Department of Ophthalmology, Medical University of Graz, Graz, Austria.
Angelika
A
Klein-Theyer
Department of Ophthalmology, Medical University of Graz, Graz, Austria.
Jutta
J
Horwath-Winter
Department of Ophthalmology, Medical University of Graz, Graz, Austria.
Dieter Franz
DF
Rabensteiner
Institute for Medical Informatics, Statistics and Documentation, Medical University of Graz, Graz, Austria.
Gerold
G
Schwantzer
AMEZ Graz occupational health centre, Medical University of Graz, Graz, Austria.
Georg
G
Wultsch
Department of Ophthalmology, Medical University of Graz, Graz, Austria.
Haleh
H
Aminfar
Department of Ophthalmology, Medical University of Graz, Graz, Austria.
Andrea
A
Heidinger
Department of Ophthalmology, Medical University of Graz, Graz, Austria.
Ingrid
I
Boldin
D000328:Adult; D015352:Dry Eye Syndromes / Q000188:drug therapy* / Q000503:physiopathology; D005123:Eye / Q000503:physiopathology*; D005145:Face; D005260:Female; D006801:Humans; D006813:Humidity; D007905:Lens Diseases / Q000188:drug therapy* / Q000503:physiopathology; D008297:Male; D008875:Middle Aged; D013666:Tears / Q000502:physiology*; D014785:Vision, Ocular / Q000502:physiology; D014792:Visual Acuity / Q000502:physiology