Navigation Links
Vision problems prompt older drivers to put down the keys

Rockville, MD With 30 million drivers in the US aged 65 and over, we count on older Americans to recognize when they can no longer drive safely and decide that it's time to stay off the road. A new study finds that a decrease in vision function is a key factor in bringing about this decision.

The Salisbury Eye Evaluation and Driving Study (SEEDS) (, conducted by researchers affiliated with Johns Hopkins University, looked at changes in vision, cognition and the general health status of more than 1,200 licensed drivers aged 67-87 in Salisbury, MD, a community with limited public transportation. SEEDS is unique, in that the researchers performed comprehensive tests of both vision and cognitive function.

The results, recently published in the peer-reviewed journal Investigative Ophthalmology & Visual Science (, reveal that after a year, 1.5 percent of the drivers had given up driving, and another 3.4 percent had restricted their driving. The most common predictors of stopping or decreasing driving were slow visual scanning, psychomotor speed and poor visuo-constructional skills, as well as reduced contrast sensitivity. (These skills are necessary to help drivers be aware of and respond to other cars, road conditions and road signs. Contrast sensitivity is the ability to detect detail in shades of gray; it is necessary for driving in poor weather and low lighting.)

"These skills are important for safe and confident driving where objects are moving at rapid speeds in relation to each other, and timely and accurate judgments are required," the researchers stated.

The study, which was in part supported by the National Institute of Aging, also found that women were four times more likely than men to stop or restrict their driving. In addition, drivers who had higher depression scores on the initial test were more likely to have given up or restricted their driving after a year. Previous studies have examined depression as an effect of giving up driving, not as a predictor.

"Older drivers are the fastest growing sector of all licensed drivers in the US," noted researcher Lisa Keay, PhD. "The decision to stop or limit driving to one's own neighborhood has major implications for personal independence but it is an important way to maintain the safety of older drivers and those who share the road.

"As a society, we would like to think that when a driver recognizes that his or her functions related to vision or cognition are declining, they make that crucial decision. My colleagues and I found it reassuring that in this group, that appeared to be the case."


Contact: Joanne Olson
Association for Research in Vision and Ophthalmology

Related medicine news :

1. Vision restoration therapy shown to improve brain activity in brain injured patients
2. Mouse vision has a rhythm all its own
3. HEI, Inc. Announces Sale of RFID Division Assets
4. QUANTEL Intends to Strengthen its Dermatology/ Aesthetics Division With the Acquisition of WaveLight Aesthetic GmbH
5. The aye-ayes have it: The preservation of color vision in a creature of the night
6. Can brain-injured, partially-blind stroke patients regain some of their lost vision?
7. HEI, Inc. Closes on Sale of RFID Division Assets
8. Elliott Extremely Dissatisfied With Genzyme Bid for Bioenvision; Believes Offer Significantly Undervalues Company
9. Colorado Medical School Receives Provisional Accreditation
10. Poor Senior Vision Often a Window on Disease
11. Drug Detection Kits Manufactured By IDenta Corp. Shown During French Television Broadcast (at TF1) - Product Aids French Police In Bust of 600 Kilograms Of Cocaine
Post Your Comments:
(Date:11/27/2015)... (PRWEB) , ... November 27, 2015 , ... ... of the well-respected Microsoft Dynamics SL User Group (MSDSLUG). Recognized as Microsoft’s official ... independent group of Microsoft Dynamics SL software users, partners, industry experts and representatives. ...
(Date:11/27/2015)... ... November 27, 2015 , ... The moment ... itself for not only fulfilling the needs of advisers and clients but going ... price and providing top-tier customer service. However, there's always room for improvement, which ...
(Date:11/27/2015)... ... 27, 2015 , ... CBD College is proud to announce that ... awarded accreditation to its Diagnostic Medical Sonography program. CBD College is honored to join ... twelve colleges and universities in the state of California make the cut. CBD College ...
(Date:11/27/2015)... (PRWEB) , ... November 27, 2015 , ... Dr. ... Medical Associates, Inc. and Dr. Tucker Bierbaum with Emergency Medicine at St., ... observed that both STEMI and Sepsis conditions present in similar ways and require time-critical ...
(Date:11/27/2015)... ... , ... Indosoft Inc., developer and distributor of the world-class ... (Long Term Support) into its Q-Suite 5.10 product line. , Making the change ... version of Asterisk that will receive not only security fixes, but feature and ...
Breaking Medicine News(10 mins):
(Date:11/26/2015)... Nederland, November 26, 2015 ... Een nieuwe aanpak combineert immunotherapie met Bremachlorin-photodynamische ... ) --> ...      (Photo: ) ... Universitair Medisch Centrum (LUMC) blijkt ...
(Date:11/26/2015)... -- 3D bioprinting market is expected to ... report by Grand View Research Inc. Rising prevalence of chronic ... transplantation is expected to boost the market growth, as 3D ... --> 3D bioprinting market is expected to ... report by Grand View Research Inc. Rising prevalence of chronic ...
(Date:11/26/2015)... DUBLIN , November 26, 2015 ... has announced the addition of the  ... in the Global Cell Surface Testing ... Opportunities" report to their offering.  ... the addition of the  "2016 Future ...
Breaking Medicine Technology: