The committee recommends that the current SSA standard should be revised so that disability determinations are based on the results of automated static projection perimetry rather than Goldmann (kinetic, nonautomated) visual fields. Three Types of Driving Distractions | DMV.ORG Many patients can see better than 20/20 after their LASIK surgery. These activities are extra dangerous, as they tend to take more attention away from your driving than distractions that fall under only one category. Manual distraction occurs when you are manipulating something other than the steering wheel. Evaluation of the driving performance of people with various ocular and neurological disorders has been performed with the use of driving simulators (Hedin & Lovsund, 1986; Szlyk & Brigell, 1992). Thus, monocular acuity of the better eye is not always an adequate predictor of binocular acuity and therefore of visual resolution in everyday life. We do, however, recommend standardization of chart design, which would raise policy issues for SSA. A recent follow-up study of 79 people with low vision and 20 age-matched controls (Lovie-Kitchin et al., 2001) confirmed these findings. We specialize in real time GPS tracking systems. The chart represents the visual field of a normal right eye, with the greatest measured extent of vision, in degrees from the point of fixation (center of the diagram), marked on each of the eight meridians. Avoid Visual Distractions - University of Hawaii Answer: TRUE. and tasks of specific occupations in which color discrimination is crucial (appraisers of precious stones, quality control specialists for paint and dye samples, etc.). Visual acuity is a measure of the spatial resolving power of the visual system; it indicates the angular size of the smallest detail that can be resolved. People with retinitis pigmentosa have particularly severe problems with glare in mobility tasks (Turano et al., 1998). SSA regulations prescribe a method for computing the overall loss of visual function that might result from impairments of both acuity and visual fields. The targets to be recognized are called optotypes, and typically they are letters, Landolt rings, or tumbling E's designed so the width of the strokes and the gaps are one fifth of the height of the optotype character. Implementation possibilities range from initiating an accreditation or certification system for providers and their test facilities to establishing dedicated test centers that would operate under SSA supervision. Inability to distinguish colors may make objects less distinguishable. The committee's recommendations for the testing of visual functions are summarized in the final section. A phenomenon known as glare discomfort has also been described in the clinical literature, referring to a subjective feeling of unpleasantness from exposure to bright light. The new formula better accounts for situations where the binocular function is not identical to the function of the better eye (American Medical Association, 2001, p.278). Several simple tests exist to characterize stereopsis. Arrangement errors are recorded on a polar coordinate chart that has the color spectrum arranged in a circle. Should the subject be able to read the smallest letters, the chart should be moved farther from the subject.