Previous Driving Experience, but Not Vision, Is Associated With Motor Vehicle Collision Rate in Bioptic Drivers

Dougherty, Bradley E; Flom, Roanne E.; Bullimore, Mark A.; Raasch, Thomas W.

doi:10.1167/iovs.15-16882

Cited by 12 publications

(20 citation statements)

References 27 publications

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“…It has been shown in a standardized road test that most already-licensed bioptic drivers (22 out of 23) were rated safe. 23 Recent studies also found that bioptic drivers' collisions rates were correlated neither with visual acuity 28 nor road test performance. 29 In a case report, an early bioptic adopter received his license in 1971 had 20/100 vision at that time, 30 and according to a report acquired from California Department of Motor Vehicles, his vision still remained 20/100 in 2017.…”

Section: Discussionmentioning

confidence: 99%

Bioptic Telescope Use in Naturalistic Driving by People with Visual Impairment

Wang

Moharrer

Baliutaviciute

et al. 2020

Trans. Vis. Sci. Tech.

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Purpose:The purpose of this study was to investigate the telescope use behaviors in natural daily driving of people with reduced visual acuity licensed to drive with a bioptic (a small spectacle-mounted telescope). Methods:A large dataset (477 hours) of naturalistic driving was collected from 19 bioptic drivers (visual acuity 20/60 to 20/160 without the telescope). To reduce the data volume, a multiloss 50-layer deep residual neural network (ResNet-50) was used to detect potential bioptic telescope use events. Then, a total of 120 hours of selected video clips were reviewed and annotated in detail. Results:The frequency of looking through their telescopes ranged from 4 to 308 times per hour (median: 27, interquartile range [IQR], 19-75), with each bioptic use lasting median 1.4 seconds (IQR, 1.2-1.8). Thus, participants spent only 1.6% (IQR, 0.7%-3.5%) driving time with their telescopes aiding their vision. Bioptic telescopes were used most often for checking the road ahead (84.8%), followed by looking at traffic lights (5.3%), and reading road signs (4.6%). Conclusions:In daily driving, the bioptic drivers mostly (>98% of driving time) drove under low visual acuity conditions. The bioptic telescope was mainly used for observing road and traffic conditions in the distance for situational awareness. Only a small portion of usage was for road sign reading. Translational Relevance:This study provides new insights into how the vision rehabilitation device-bioptic telescopes are used in daily driving. The findings may be helpful for designing bioptic driving training programs.

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Section: Discussionmentioning

confidence: 99%

Bioptic Telescope Use in Naturalistic Driving by People with Visual Impairment

Wang

Moharrer

Baliutaviciute

et al. 2020

Trans. Vis. Sci. Tech.

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“…Two recent studies of bioptic drivers, mostly without AMD, reported differences in training hours 23 and accident rates 26 between participants with prior nonbioptic driving experience (first licensed without a bioptic) and participants without any prior nonbioptic driving experience (first licensed with a bioptic). We therefore divided the younger, non-AMD bioptic drivers who responded to our survey into two groups: persons first licensed without a bioptic and persons first licensed with a bioptic.…”

Section: Methodsmentioning

confidence: 99%

“…In a recent retrospective review of 237 licensed bioptic drivers who received their initial evaluation to determine visual eligibility for bioptic driving in a university-based clinic, only 4% had a diagnosis of AMD. 26 Yet, AMD is a major cause of central vision impairment in the United States. 27 , 28 With the advent of new antivascular endothelial growth factor treatments for neovascular AMD 29 , 30 there will be increasing numbers 31 , 32 of older people with AMD who retain visual acuity sufficient to meet the vision requirements for driving with a bioptic telescope (visual acuity without the telescope can be as low as 20/200 in some states).…”

Section: Introductionmentioning

confidence: 99%

Bioptic Telescope Use and Driving Patterns of Drivers with Age-Related Macular Degeneration

Bowers

Sheldon

DeCarlo

et al. 2016

Trans. Vis. Sci. Tech.

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PurposeTo investigate the telescope use and driving patterns of bioptic drivers with age-related macular degeneration (AMD).MethodsA questionnaire addressing telescope use and driving patterns was administered by telephone interview to three groups of bioptic drivers: AMD (n = 31; median 76 years); non-AMD first licensed with a bioptic (n = 38; 53 years); and non-AMD first licensed without a bioptic (n = 47; 37 years). Driving patterns of bioptic AMD drivers were also compared with those of normal vision (NV) drivers (n = 36; 74 years) and nonbioptic AMD drivers (n = 34; 79 years).ResultsBioptic usage patterns of AMD drivers did not differ from those of the younger bioptic drivers and greater visual difficulty without the bioptic was strongly correlated with greater bioptic helpfulness. Bioptic AMD drivers were more likely to report avoidance of night driving than the age-similar NV drivers (P = 0.06). However, they reported less difficulty than the nonbioptic AMD drivers in all driving situations (P ≤ 0.02). Weekly mileages of bioptic AMD drivers were lower than those of the younger bioptic drivers (P < 0.001), but not the NV group (P = 0.54), and were higher than those of the nonbioptic AMD group (P < 0.001).ConclusionsOur results suggest that bioptic telescopes met the visual demands of drivers with AMD and that those drivers had relatively unrestricted driving habits.Translational RelevanceLicensure with a bioptic telescope may prolong driving of older adults with AMD; however, objective measures of bioptic use, driving performance, and safety are needed.

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“…A retrospective study of the relationship between vision and bipotic drivers’ perfromance in road test 21 , showed that the hours of training, not any visual factors, were the predictive of road testing outcome. Also, Dougherty, Flom, Bullimore and Raasch 15 study on traffic collisions of a group of bioptic drivers found that more driving experience prior to the use of bioptic telescope correlated with lower possiblity of being involved in road crashes. Their study 15 did not find any significant relationships between vision (visual acuity and contrast sensitivity) and road collisions.…”

Section: Introductionmentioning

confidence: 98%

“…Also, Dougherty, Flom, Bullimore and Raasch 15 study on traffic collisions of a group of bioptic drivers found that more driving experience prior to the use of bioptic telescope correlated with lower possiblity of being involved in road crashes. Their study 15 did not find any significant relationships between vision (visual acuity and contrast sensitivity) and road collisions. Nonetheless, bioptic users who have driven safely for decades provide possibilities for targeted research on the relationship between vision and driving.…”

Section: Introductionmentioning

confidence: 98%

Roles of motion perception and visual acuity for driving hazard perception

Moharrer

Tang

Luo

2018

Preprint

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PURPOSEThere are many visually impaired people who can drive legally with bioptic telescope. Drawing on the experience of drivers with reduced vision, this study investigated the role of motion perception and visual acuity in driving, under simulated low visual acuity.METHODSTwenty normally sighted participants took part in a driving hazard perception (HP) test, in four different conditions: with/without motion interruption and with/without simulated low visual acuity. In interrupted motion conditions a mask frame was inserted between every frame of the driving videos. In simulated low visual acuity conditions, participants wore glasses with diffusing filters that lowered their visual acuity to 20/120 on average. Participants’ response time, hazard detection rates, and HP scores, which combined response time and detection rate, were compared.RESULTSRepeated measure ANOVA revealed that the HP scores significantly declined from 20.46 to 16.82 due to the motion mask (F(1,19) = 9.343, p = 0.006). However, simulated low visual acuity did not affect HP scores (F(1,19) = 1.807, p = 0.195). The interaction between vision and mask was not significant (F(1,19) = 1. 295, p = 0.269). The decline in score was mostly due to significant decrease in detection rate, from 0.80 to 0.64, due to the motion mask (F(1,19) = 16.686, p = 0.001).CONCLUSIONSIn this experimental setting, human observers relied largely on motion information for detecting driving hazards, rather than high visual acuity. This finding might help explain how visually impaired drivers can compensate for their impaired vision during driving.

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Previous Driving Experience, but Not Vision, Is Associated With Motor Vehicle Collision Rate in Bioptic Drivers

Abstract: Previous nonbioptic driving experience, but not visual acuity or contrast sensitivity, was associated with yearly MVC rate in bioptic drivers.

Cited by 12 publications

References 27 publications

Bioptic Telescope Use in Naturalistic Driving by People with Visual Impairment

Bioptic Telescope Use in Naturalistic Driving by People with Visual Impairment

Bioptic Telescope Use and Driving Patterns of Drivers with Age-Related Macular Degeneration

Roles of motion perception and visual acuity for driving hazard perception

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