Older people contact more obstacles when wearing multifocal glasses and performing a secondary visual task

Journal of the American Geriatrics Society

Volumn 57, Issue 10, 2009, Pages 1833-1838

  Menant, Jasmine C ^a   St George, Rebecca J ^a   Sandery, Blake ^a   Fitzpatrick, Richard C ^a   Lord, Stephen R ^a  

^a UNIVERSITY OF NEW SOUTH WALES   (Australia)

Author keywords

Aged; Dual tasks; Gait; Multifocal glasses; Vision

Indexed keywords

AGED; ARTICLE; CLINICAL TRIAL; CONTROLLED STUDY; EYE MOVEMENT; FEMALE; GROUPS BY AGE; HEAD MOVEMENT; HUMAN; HUMAN EXPERIMENT; MALE; SPECTACLES; TASK PERFORMANCE; VISUAL ACUITY;

AGED; CROSS-OVER STUDIES; EQUIPMENT DESIGN; EYEGLASSES; FEMALE; HUMANS; MALE; TASK PERFORMANCE AND ANALYSIS;

EID: 70350378396     PISSN: 00028614     EISSN: 15325415     Source Type: Journal    
DOI: 10.1111/j.1532-5415.2009.02436.x     Document Type: Article

References (27)

1. Blake AJ, Morgan K, Bendall MJ et al. Falls by elderly people at home: Prevalence and associated factors. Age Ageing 1988 17 : 365 372.
2. Connell BR, Wolf SL. Environmental and behavioral circumstances associated with falls at home among healthy elderly individuals. Arch Phys Med Rehabil 1997 78 : 179 186.
3. Davies JC, Kemp GJ, Stevens G et al. Bifocal/varifocal spectacles, lighting and missed-step accidents. Saf Sci 2001 38 : 211 226.
4. Lord SR, Dayhew J, Howland A. Multifocal glasses impair edge-contrast sensitivity and depth perception and increase the risk of falls in older people. J Am Geriatr Soc 2002 50 : 1760 1766.
5. Cummings SR, Nevitt MC, Browner WS et al. Risk factors for hip fracture in white women. Study of Osteoporotic Fractures Research Group. N Engl J Med 1995 332 : 767 773.
6. de Boer MR, Pluijm SM, Lips P et al. Different aspects of visual impairment as risk factors for falls and fractures in older men and women. J Bone Miner Res 2004 19 : 1539 1547.
7. Felson DT, Anderson JJ, Annan MT. Impaired vision and hip fracture: The Framingham Study. J Am Geriatr Soc 1989 37 : 495 500.
8. Ivers RQ, Cumming RG, Mitchell P et al. Visual impairment and falls in older adults: The Blue Mountains Eye Study. J Am Geriatr Soc 1998 46 : 58 64. (Pubitemid 28037674)
9. Lord SR, Clark RD, Webster IW. Visual acuity and contrast sensitivity in relation to falls in an elderly population. Age Ageing 1991 20 : 175 181.
10. Lord SR, Dayhew J. Visual risk factors for falls in older people. J Am Geriatr Soc 2001 49 : 508 515.
11. Nevitt MC, Cummings SR, Kidd S et al. Risk factors for recurrent nonsyncopal falls. A prospective study. J Am Med Assoc 1989 261 : 2663 2668.
12. Berg WP, Alessio HM, Mills EM et al. Circumstances and consequences of falls in independent community-dwelling older adults. Age Ageing 1997 26 : 261 268.
13. Patla AE, Vickers JN. Where and when do we look as we approach and step over an obstacle in the travel path? Neuroreport 1997 8 : 3661 3665.
14. Marigold DS, Patla AE. Gaze fixation patterns for negotiating complex ground terrain. Neuroscience 2007 144 : 302 313.
15. Rhea CK, Rietdyk S. Visual exteroceptive information provided during obstacle crossing did not modify the lower limb trajectory. Neurosci Lett 2007 418 : 60 65.
16. Rietdyk S, Rhea CK. Control of adaptive locomotion: Effect of visual obstruction and visual cues in the environment. Exp Brain Res 2006 169 : 272 278.
17. Marigold DS, Patla AE. Visual information from the lower visual field is important for walking across multi-surface terrain. Exp Brain Res 2008 188 : 23 31.
18. Johnson L, Buckley JG, Scally AJ et al. Multifocal spectacles increase variability in toe clearance and risk of tripping in the elderly. Invest Ophthalmol Vis Sci 2007 48 : 1466 1471.
19. Johnson L, Buckley JG, Harley C et al. Use of single-vision eyeglasses improves stepping precision and safety when elderly habitual multifocal wearers negotiate a raised surface. J Am Geriatr Soc 2008 56 : 178 180.
20. Chen HC, Schultz AB, Ashton-Miller JA et al. Stepping over obstacles: Dividing attention impairs performance of old more than young adults. J Gerontol A Biol Sci Med Sci 1996 51 : M116 M122.
21. Harley C, Wilkie RM, Wann JP. Stepping over obstacles: Attention demands and aging. Gait Posture 2009 29 : 428 432.
22. Kim HD, Brunt D. The effect of a dual-task on obstacle crossing in healthy elderly and young adults. Arch Phys Med Rehabil 2007 88 : 1309 1313.
23. Haran MJ, Cameron ID, Ivers RQ et al. Preventing falls in older multifocal glasses wearers by providing single-lens distance glasses: The protocol for the VISIBLE randomised controlled trial. BMC Geriatr 2009 9 : 10.
24. Tombaugh TN, McIntyre NJ. The Mini-Mental State Examination: A comprehensive review. J Am Geriatr Soc 1992 40 : 922 935.
25. Perneger TV. What's wrong with Bonferroni adjustments? BMJ 1998 316 : 1236 1238.
26. Lord SR, Ward JA, Williams P et al. An epidemiological study of falls in older community-dwelling women: The Randwick Falls and Fractures Study. Aust J Public Health 1993 17 : 240 245.
27. van Dieen JH, Pijnappels M, Bobbert MF. Age-related intrinsic limitations in preventing a trip and regaining balance after a trip. Saf Sci 2005 43 : 437 453.