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Driving with the Bioptic Telescope

Driving with the Bioptic Telescope. Presented By Dr. Dennis Kelleher California Department of Education. What is a Bioptic Telescope. Miniature aperture Expanded field (Keplerian) Standard field (Galilean) Magnification Range 1.7X to 6X 2.2X, 3X & 4X most commonly used.

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Driving with the Bioptic Telescope

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  1. Driving with the Bioptic Telescope Presented By Dr. Dennis Kelleher California Department of Education Driving with the Bioptic Telescope

  2. What is a Bioptic Telescope • Miniature aperture • Expanded field (Keplerian) • Standard field (Galilean) • Magnification Range 1.7X to 6X • 2.2X, 3X & 4X most commonly used Driving with the Bioptic Telescope

  3. Bioptic Telescope Assortment Driving with the Bioptic Telescope

  4. When is a Bioptic TelescopeRecommended for Driving? • Visual Acuity of less than 20/80 • Visual Acuity of greater than 20/200 • Near normal peripheral visual fields of at least 150 degrees • Near normal eye motility Driving with the Bioptic Telescope

  5. Vision Factorsto Consider • Static Visual Acuity • Dynamic Visual Acuity • Visual Fields • Stable Eye Pathology • Color Perception • Depth Perception & Binocularity • Contrast Sensitivity & Glare Recovery Driving with the Bioptic Telescope

  6. Vision Standards & Guidelines • Greater than 20/200 VA without Bioptic • Minimum 20/40 Visual Acuity with Bioptic • Minimum 150 Degree Visual Field • Stable Eye Condition • Contrast Sensitivity & Image Brightness • Ability to Differentiate Color • Ability to Track Objects • Peripheral Vision in Both Eyes Driving with the Bioptic Telescope

  7. Vehicle Code 12805 (b) The Department shall not issue a driver’s license to, or renew a driver’s license of, any person: (b) Whose best corrected visual acuity is 20/200 or worse in that person’s better eye, as verified by an optometrist or ophthalmologist. No person may use a bioptic telescope or similar lens to meet the 20/200 visual acuity standards. Driving with the Bioptic Telescope

  8. Form DL 62 Report • VA without lenses • VA with standard lenses • VA through Bioptic in better eye • Date and type of most recent prescription • Visual fields • Diagnosis (cause of low vision) • Prognosis (stability) • Advice for re-exam, restrictions, lighting, glare. use of other aids etc. Driving with the Bioptic Telescope

  9. Non-Visual Safety Margin Factors • Emotional Status • Reaction Time & Mental Alertness • Substance Abuse • Inexperience & Over-Exposure • Age • Other Impairments • A Need to Drive Driving with the Bioptic Telescope

  10. Bioptic Training Sequence • Locate Stationary Objects while Still • Locate Moving Objects while Still • Locate Moving Objects while Moving • Develop Rapid, Accurate Perception • Spatial Awareness & Memory • Adjustments to various lighting conditions • Use of tracking cues Driving with the Bioptic Telescope

  11. Other Considerations for Low Vision Drivers • Use Other Low Vision Devices Appropriately • Know Where You Are Going in Advance • Use Non-Visual Cues • Be Attentive to Driving at All Times • Drive During Less Demanding Conditions • Impose Voluntary Self-Restrictions • Periodic Professional Training Driving with the Bioptic Telescope

  12. Driving Tasks • Steering, Shifting & Turning • Speed Control & Braking • Backing Up and Parking • Depth Perception • Use of Mirrors • Know Driving Laws & Use Courtesy Driving with the Bioptic Telescope

  13. Defensive Driving Skills • Keep Your Eyes Moving • See the Entire Picture • Be Sure You are Seen • Follow at a Safe Distance (4 seconds) • Anticipate what Other Driver(s) Action • Leave Yourself an Escape Driving with the Bioptic Telescope

  14. Effective Bioptic Use • Spotting Device • Vary Amount of Bioptic Use • Maximizing Eye Movement • Scanning Driving Environment Driving with the Bioptic Telescope

  15. Indicators of Effective Bioptic Use • See traffic lights/stop signs, pedestrians in crosswalks through carrier lens • Spots & reads freeway signs within one second • Determines distance before intersection to spot for breaking • Varies use between freeways, residential & business areas Driving with the Bioptic Telescope

  16. Restrictions • Geographic Area • Hours • Specific Roads • Special Vehicle & Equipment • Driving to specific destinations • No Restrictions Driving with the Bioptic Telescope

  17. Objections to Bioptic Telescope Use • Restricted Visual Field through Bioptic • Ring Scotoma Causing Blind Spot • Vibration and Speed Blur • Telescopic Parallax & Depth Perception • Bioptic Use with Mirrors • Sensitive Bioptic Frame Adjustments Driving with the Bioptic Telescope

  18. RESOURCES Association for Driver Rehabilitation Specialists PO Box 49, Edgerton, WI 53534 (t) 608-884-8833 (fax) 608-884-4851; http://www.driver-ed.org BiOptic Driving Network www.BiOpticDriving.org www.BiOpticDriving.org.uk Driving with the Bioptic Telescope

  19. FOR MORE INFORMATION Dr. Dennis Kelleher Special Education Division California Department of Education 515 L Street Suite 270 Sacramento, CA 95814 916-327-0842 voice 916-445-4550 FAX dkellehe@cde.ca.gov Driving with the Bioptic Telescope

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