Do28-01 Contrast sensitivity under static, dynamic and glare conditions in a nighttime driving simulator environment

Measuring contrast sensitivity (CS) is highly standardized under clinical, static conditions. However, this is not the case under dynamic conditions during activities of daily living, such as (nighttime) driving. The AMPEL (Aalen Mobility Perception and Exploration Lab) driving simulator offers the opportunity of measuring CS under static, dynamic and glare conditions in a close-to-reality setup. Thereby, the extent to which CS can be utilized to predict night driving ability can be assessed.

·       Judith Ungewiß (Aalen)

Do28-02 Introduction of a new setup for standardized assessment of reading performance

Michael Liebhaber1, Judith Ungewiß1,2, Ulrich Schiefer1,3
 
1 Competence Center „Vision Research“, Study Course Ophthalmic Optics & Optometry, Aalen University of Applied Sciences, Aalen/FRG 
2 Carl Zeiss Vision International GmbH, Aalen/FRG
3 Department of Ophthalmology, University Eye Hospital Tübingen, Tübingen/FRG
 
Visual acuity measurement is standardized according to the norms EN ISO 8596 and DIN 58220-3. While the European norm focuses on distant measurements, the German norm also specifies distances for near vision.
Reading charts are commonly used for near vision testing. Non-standardized illumination conditions and distances are disadvantages of this procedure. The purpose of this project was to analyze whether a digital device (Optovist II, Vistec AG, Olching/FRG) can help to standardize reading performance measurement.

·       Michael Liebhaber (Aalen)

Do28-03 Halometry – a new approach of comprehensible quantification of glare-induced visual impairment

Currently, glare-induced visual impairment is – comparatively unrealistically – evaluated by measuring contrast sensitivity with static glare sources and static optotypes or by means of questionnaires. “Halometry” is a standardized procedure (patent pending), measuring the halo extent using semi-automated kinetic perimetry: Eight-position LANDOLT Cs, emanating from the center of a glare source, move radially outwards along pre-specified vectors with constant angular velocity, until the tested subject recognizes the gap position. This procedure can be repeated to assess intra-subject variability.

·       Ulrich Schiefer (Aalen/Tübingen)

Do28-04 Impact of binocular visual field loss on driving performance

·       Chris A. Johnson (Iowa, Vereinigte Staaten)

Do28-05 Vision and its impact on sportive activities

·       Gernot Jendrusch (Bochum)

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