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Research Group
Individual Visual Performance [Vision]
The coordination of both eyes is important for optimal vision without visual strain when reading, working at computer displays or complex monitor systems like head-up-displays or stereo displays. In these fields of applied research we particularly consider individual differences in visual performance.
Scientific Members
- Jörg Hoormann
- Stephanie Jainta
- Wolfgang Jaschinski (head)
- Wilhelm-Bernhard Kloke
- Mirjam König
- Nathalie Le Bigot
Research partners from other IfADo groups: Birgit Arnold-Schulz-Gahmen, Martin Fritz, Edmund Wascher
Our long time member Walter Ehrenstein passed away early 2009.
Guest Scientific
- Mrs. Aiga ?vede, Department of Optometry and Vision Science, University of Latvia
Current research
- Field of research "Computer workstations: glasses and screen position for the middle-aged and elderly"
(Mirjam König)
When working at the computer, presbyopic users may experience visual and musculo-skeletal complaints if the spectacle glasses and the position of the computer screen is not chosen accordingly. We find new solution for this problem by combining ergonomic and optometric knowledge and research. (more ...) - Field of research "The computer workstation of the future - better ergonomics by the use of new technologies (DFG)"
(Nathalie LeBigot, Wolfgang Jaschinski)
Which are the appropriate conditions for using nonius lines (presented separately to the two eyes) in order to measure the vergence angle between the visual axes correctly?
(more ...) - Field of research "Binocular coordination in reading"
(Stephanie Jainta)
Long-lasting reading or computer work can lead to visual complaints in some subjects. This may have different reasons: we investigate the coordination of the two eyes, which we examine in test conditions that resemble visual work. Therefore, we measure the movement of the two eyes during gaze shifts and reading tasks and take into account individual differences in optometric functions. (more?) - Field of research "Binocular vision and visual complaints"
(Markus Raabe, Wolfgang Jaschinski)
Which vision test procedures are best to determine whether visual strain of a person is related to a weakness in binocular coordination?
(more ...) - Intergroup research initiative "Head-Up-Displays"
In cooperation with the research group "Modern man-machine systems"
(Wilhelm B. Kloke)
With "Head-Up-Displays" (HUDs) in a car, visual information can be presented into the driver's visual field of the road. Thus, for reading HUDs, the driver need not decline his gaze direction as at conventional instruments like speedometers. This may have the advantage that the attention remains focussed on the road traffic.
(more...)
Research facilities
- Eye movement recordings with Iris, PowerRef, and EyeLink
- Measurement of accommodation with SWR5000TM, PowerRefTM, and ShinNipponTM
- Mirror haploscope and shutter glasses for stereoscopic presentation
- Optometric equipment with phoropter, PolatestTM and VisucatTM
- eye-test PC as practical application of our laboratory technology
Selected publications
- Jainta, S.; Jaschinski, W.: "Trait" and "state" aspects of fixation disparity during reading. J. Eye Movement Res. 3: 3(3):1, 1-13 (2010)
- König, M.; Jaschinski, W.: Individuelle Gestaltung des Bildschirmarbeitsplatzes für die Generation 40 plus - ein Beratungskonzept
Angew. Arbeitswiss. : 44-59 (2009) - Jainta, S.; Hoormann, J.; Jaschinski, W.: Accommodation modulates the individual difference between objective and subjective measures of the final convergence step response. Ophthal. Physiol. Opt. 29: 162-172 (2009)
- Jainta, S.; Hoormann, J.; Jaschinski, W.: Ocular accommodation and cognitive demand: an additional indicator besides pupil size and cardiovascular measures? J. Negative Results Biomed. : 7:6, 1-14 (2008)
- Jaschinski, W.; Svede, A.; Jainta, S.: Relation between fixation disparity and the asymmetry between convergent and divergent disparity step responses. Vision Res. 48: 253-263 (2008)