Normal Aging Effects for Frequency Doubling Technology Perimetry

Adams, Craig W.; Bullimore, Mark A.; Wall, Michael; Fingeret, Murray; Johnson, Chris A.

doi:10.1097/00006324-199908000-00027

Cited by 66 publications

(37 citation statements)

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“…Some studies found a more or less linear decline in the visual field with increasing age, starting around the age of 20 (Haas et al 1986), whereas others showed a fairly linear reduction in sensitivity until ages 50 to 60 and a slightly greater reduction in sensitivity afterward (Adams et al 1999;Johnson and Choy 1987). Visual field sensitivity also declines with increasing eccentricity (Jaffe et al 1986;Katz and Sommer 1986).…”

Section: Visual Fieldmentioning

confidence: 99%

“…Numerous studies have reported an age-related decrease in the visual field (Adams et al 1999;Haas et al 1986;Heijl et al 1987;Jaffe et al 1986;Johnson et al 1989;Johnson and Choy 1987;Katz and Sommer 1986;Morgan and King 1995). Some studies found a more or less linear decline in the visual field with increasing age, starting around the age of 20 (Haas et al 1986), whereas others showed a fairly linear reduction in sensitivity until ages 50 to 60 and a slightly greater reduction in sensitivity afterward (Adams et al 1999;Johnson and Choy 1987).…”

Section: Visual Fieldmentioning

confidence: 99%

“…Some researchers reported a greater interpersonal variability for older persons in the peripheral visual field compared to their central visual field and compared to younger counterparts (Katz and Sommer 1986). Others revealed no age-related effect on variability (Adams et al 1999).…”

Section: Visual Fieldmentioning

confidence: 99%

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Vision and Night Driving Abilities of Elderly Drivers

Gruber

Mosimann

Müri

et al. 2013

Traffic Injury Prevention

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Objective:In this article, we review the impact of vision on older people's night driving abilities. Driving is the preferred and primary mode of transport for older people. It is a complex activity where intact vision is seminal for road safety. Night driving requires mesopic rather than scotopic vision, because there is always some light available when driving at night. Scotopic refers to night vision, photopic refers to vision under well-lit conditions, and mesopic vision is a combination of photopic and scotopic vision in low but not quite dark lighting situations. With increasing age, mesopic vision decreases and glare sensitivity increases, even in the absence of ocular diseases. Because of the increasing number of elderly drivers, more drivers are affected by night vision difficulties. Vision tests, which accurately predict night driving ability, are therefore of great interest.Methods: We reviewed existing literature on age-related influences on vision and vision tests that correlate or predict night driving ability.Results: We identified several studies that investigated the relationship between vision tests and night driving. These studies found correlations between impaired mesopic vision or increased glare sensitivity and impaired night driving, but no correlation was found among other tests; for example, useful field of view or visual field. The correlation between photopic visual acuity, the most commonly used test when assessing elderly drivers, and night driving ability has not yet been fully clarified.Conclusions: Photopic visual acuity alone is not a good predictor of night driving ability. Mesopic visual acuity and glare sensitivity seem relevant for night driving. Due to the small number of studies evaluating predictors for night driving ability, further research is needed.

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Section: Visual Fieldmentioning

confidence: 99%

Section: Visual Fieldmentioning

confidence: 99%

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Vision and Night Driving Abilities of Elderly Drivers

Gruber

Mosimann

Müri

et al. 2013

Traffic Injury Prevention

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“…82 Using the C-20°-1 algorithm, the initial level presented would be detected by 99% of the normal population of a particular age, and is therefore designed to have a high specificity. Using the C-20°-5 algorithm the initial level presented would be detected by 95% of the normal population of a particular age and is therefore a test aimed to optimise sensitivity.…”

Section: Population Distribution Of Test Parametersmentioning

confidence: 99%

The clinical effectiveness and cost-effectiveness of screening for open angle glaucoma: a systematic review and economic evaluation

Burr¹,

Mowatt²,

Hernández³

et al. 2007

Health Technol Assess

330

380

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Non-UK purchasers will have to pay a small fee for post and packing. For European countries the cost is £2 per monograph and for the rest of the world £3 per monograph.You can order HTA monographs from our Despatch Agents:-fax (with credit card or official purchase order) -post (with credit card or official purchase order or cheque) -phone during office hours (credit card only).Additionally the HTA website allows you either to pay securely by credit card or to print out your order and then post or fax it. NHS libraries can subscribe free of charge. Public libraries can subscribe at a very reduced cost of £100 for each volume (normally comprising 30-40 titles). The commercial subscription rate is £300 per volume. Please see our website for details. Subscriptions can only be purchased for the current or forthcoming volume. Contact details are as follows: Payment methods Paying by chequeIf you pay by cheque, the cheque must be in pounds sterling, made payable to Direct Mail Works Ltd and drawn on a bank with a UK address. Paying by credit cardThe following cards are accepted by phone, fax, post or via the website ordering pages: Delta, Eurocard, Mastercard, Solo, Switch and Visa. We advise against sending credit card details in a plain email. Paying by official purchase orderYou can post or fax these, but they must be from public bodies (i.e. NHS or universities) within the UK. We cannot at present accept purchase orders from commercial companies or from outside the UK. How do I get a copy of HTA on CD?Please use the form on the HTA website (www.hta.ac.uk/htacd.htm). Or contact Direct Mail Works (see contact details above) by email, post, fax or phone. HTA on CD is currently free of charge worldwide.The website also provides information about the HTA Programme and lists the membership of the various committees. HTA NIHR Health Technology Assessment ProgrammeT he Health Technology Assessment (HTA) programme, now part of the National Institute for Health Research (NIHR), was set up in 1993. It produces high-quality research information on the costs, effectiveness and broader impact of health technologies for those who use, manage and provide care in the NHS. 'Health technologies' are broadly defined to include all interventions used to promote health, prevent and treat disease, and improve rehabilitation and long-term care, rather than settings of care. The research findings from the HTA Programme directly influence decision-making bodies such as the National Institute for Health and Clinical Excellence (NICE) and the National Screening Committee (NSC). HTA findings also help to improve the quality of clinical practice in the NHS indirectly in that they form a key component of the 'National Knowledge Service'. The HTA Programme is needs-led in that it fills gaps in the evidence needed by the NHS. There are three routes to the start of projects. First is the commissioned route. Suggestions for research are actively sought from people working in the NHS, the public and consumer groups and professional bodies such as r...

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“…Many histological studies have shown that age-related reductions in photoreceptor density (Marshall et al 1979;Gartner & Henkind 1981;Dorey et al 1989;Gao & Hollyfield 1992;Curcio et al 1993), photopigment density (van Norren & van Meel 1985;Kilbride et al 1986), the number and morphology of optic nerve axons (Dolman et al 1980;Balazsi et al 1984;Sommer et al 1984;Repka & Quigley 1989) and the population density of neurons in the visual cortex (Devaney & Johnson 1980) do exist. Several studies have assumed a linear decrease in threshold values with age (Drance et al 1967a(Drance et al , 1967bEgge 1984;Flammer 1985;Brenton & Phelps 1986;Haas et al 1986;Jaffe et al 1986;Heijl et al 1987;Zulauf et al 1994a;Koller et al 2001;Okuyama et al 2001;Heijl 2005), whereas many authors have described a non-linear mathematical model or found a change point, demonstrating an increasing loss of sensitivity at a specific age (Derefeldt et al 1979;Iwase et al 1988;Vivell et al 1992;Lachenmayr et al 1994Lachenmayr et al , 2001Adams et al 1999;Lorch et al 2001;Schwabe et al 2001;Spry & Johnson 2001). To explain the discrepancy between a continuous loss of sensitivity and an accelerated loss at older ages, Lachenmayr et al (1994) scrutinized the ...…”

Section: Ageingmentioning

confidence: 99%

Age‐dependent normative values for differential luminance sensitivity in automated static perimetry using the Octopus 101

Hermann

Paetzold

Vonthein

et al. 2008

Acta Ophthalmologica

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ABSTRACT.Purpose: To determine age-dependent normative differential threshold values for the Octopus 101 instrument and to create a smooth mathematical model characterizing the age-dependency and asymmetry of the hill of vision. Methods: Static automated perimetry within the central 30°visual field (VF) was conducted with the Octopus 101 (background luminance 10 cd ⁄ m 2 ) in 81 eyes of 81 ophthalmologically healthy subjects (11-12 per decade of age) aged 10-79 years. A 4-2-2 staircase strategy with three reversals was run. The test point grid consisted of 68 concentrically arranged points with test point condensation towards the VF centre, representing the approximately rotation-symmetrical 30°hill of vision. Thresholds of differential luminance sensitivity (DLS) were estimated by the maximum likelihood method. A smooth mathematical model was fitted to the normative data. Results: The model fit was satisfactory (r 2 = 0.74). Covariables were: age, eccentricity, angle and subject. Total random standard deviation (SD) was 1.75 dB. The residual SD exceeded 1.75 dB in the border region, was 1.5 dB within the centre and fell below 1.25 dB in a ring around the centre. Average thresholds of DLS varied with age quadratically. It is close to constant for the 10-40-year-old age group and declines ever more steeply thereafter. The effect of age on DLS in the VF increased with eccentricity. The greatest drop was located in the peripheral superior hemifield: at 25°eccentricity the superior DLS was estimated to be 5.5 dB higher in 10-year-olds than in 75-year-olds. Conclusions: This new smooth model allows for the prediction of age-related normal threshold values for any stimulus location within the 30°VF and thus for the calculation of global and local measures of defect such as mean defects or p-values for any type of stimulus.

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Normal Aging Effects for Frequency Doubling Technology Perimetry

Cited by 66 publications

References 0 publications

Vision and Night Driving Abilities of Elderly Drivers

Vision and Night Driving Abilities of Elderly Drivers

The clinical effectiveness and cost-effectiveness of screening for open angle glaucoma: a systematic review and economic evaluation

Age‐dependent normative values for differential luminance sensitivity in automated static perimetry using the Octopus 101

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