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Results 401 - 450 of 1045
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Kurita, Hiroshi
This article reports field observation of Paleogene clastic successions in two areas in north-western Kyushu and provides a preliminary interpretation of their sedimentary environments on the basis of lithological facies. In the sections from Sakito-Oshima Island, the Ichigoshima, Sakito, Maze and Tokuman Formations were logged. They are, except their basal ...
Stetzer A J - - 2007
The objective of this study was to evaluate the effects of enhancement and aging on quality characteristics of the gluteus medius (round), rectus femoris (round), teres major (chuck), infraspinatus (chuck), and psoas major (loin). Muscles were enhanced, vacuum packaged, and aged for 7 or 14 d. Aging affected enhanced compared ...
Khan R I - - 2007
All children under the age of 16 who fulfilled the criteria of blindness and low vision as defined by WHO were included in the study. These children were recruited from 1990 to 2004 from all the Ophthalmology Departments of Ireland, National Council of Blind and Visually impaired. Data was collected ...
Parikh Rajul S - - 2007
PURPOSE: To determine the normal age-related loss of retinal nerve fiber layer thickness (RNFLT) as measured on Stratus optical coherence tomography (OCT 3; Carl Zeiss Meditec, Dublin, CA) in an Asian Indian population. DESIGN: Prospective, cross-sectional, observational study. PARTICIPANTS: One hundred eighty-seven eyes of 187 normal subjects (age range, 5-75 ...
Subramaniam Sandhya V - - 2007
PURPOSE: The primary objective of this study is to determine whether there are significant differences in visual and refractive outcomes between gas permeable (GP) and non-GP wearers following a 1-month period of overnight orthokeratology (OK). METHODS: The study included 14 subjects between the ages of 18 and 42 years. Group ...
Xiong Youling L - - 2007
Two experiments were conducted to investigate the influence of age of mature cows (2-4yr, 6-8yr, and 10-12yr cows; n=6 in each) on beef quality. In Experiment 1, Longissimus dorsi (LD) steaks were stored at 3°C for 0-10d. Steaks from more mature cows had an increased (P<0.05) Warner-Bratzler shear force (WBSF) ...
Aring Eva - - 2007
BACKGROUND: The ability to keep steady fixation on a target is one of several aspects of good visual function. However, there are few reports on visual fixation during childhood in healthy children. METHODS: An infrared eye-tracking device (Orbit) was used to analyse binocular fixation behaviour in 135 non-clinical participants aged ...
Madden David J - - 2007
Older adults are often slower and less accurate than are younger adults in performing visual-search tasks, suggesting an age-related decline in attentional functioning. Age-related decline in attention, however, is not entirely pervasive. Visual search that is based on the observer's expectations (i.e., top-down attention) is relatively preserved as a function ...
Muftuoglu Orkun - - 2007
PURPOSE: To compare the photopic and scotopic contrast sensitivity with and without glare as well as blue color perception between eyes with an AcrySof SN60AT Natural intraocular lens (IOL) (Alcon Laboratories Inc.) and eyes with a conventional AcrySof SA60AT IOL. SETTING: Ankara University School of Medicine, Department of Ophthalmology, Ankara, ...
Bunce C - - 2008
AIM: The last complete report on causes of blindness in England and Wales was for data collected during April 1990 to March 1991. This current study sought to update these figures, with data collected during April 1999 to March 2000, and examine variation in cause by age group. METHODS: In ...
Abbott Emily J - - 2007
PURPOSE: The condition in which visual hallucinations (VHs) are solely associated with a visual impairment is termed Charles Bonnet Syndrome (CBS). The study was undertaken to investigate whether the extent of visual acuity (VA) loss and central visual field loss predisposes a patient with age-related macular degeneration (AMD) to develop ...
Cumming Robert G - - 2007
OBJECTIVES: To determine the efficacy of vision and eye examinations, with subsequent treatment of vision problems, for preventing falls and fractures in frail older people. DESIGN: Randomized, controlled trial. SETTING: Community in Sydney, Australia. PARTICIPANTS: Six hundred sixteen men and women aged 70 and older (mean age 81) recruited mainly ...
Long, Rowena Louise
Management of weed species is often complicated by the unknown status of their soil seed&#13;banks. Field trials for evaluating seed persistence, whilst accurate in their context, are timeconsuming&#13;and expensive. Weed scientists and land managers alike would benefit from a&#13;more rapid method for estimating weed seed longevity.&#13;This study aimed to develop ...
Picard Delphine - - 2007
Children's tactual, visual, and cross-modal transfer abilities for texture were investigated in a delayed matching-to-sample paradigm. Transfer performance from vision to touch was found to increase between 5 and 8 years of age, whereas transfer performance from touch to vision did not vary with age and matched touch-to-touch performance. Asymmetrical ...
Weiss Jayne S - - 2007
To assess the findings, visual morbidity, and surgical intervention in Schnyder crystalline corneal dystrophy (SCCD). Retrospective case series of 115 affected individuals from 34 SCCD families identified since 1989. Age, uncorrected visual acuity, best-corrected visual acuity (BCVA), corneal findings, and ocular surgery were recorded. Prospective phone, e-mail, or written contact ...
Veiel Lori L - - 2006
Previous research has demonstrated that younger adults are surprisingly poor at detecting substantial changes to visual scenes. Little is known, however, about age differences in this phenomenon. In the 2 experiments reported here, older adults were slower than younger adults in detecting changes to simple visual stimuli. This age difference ...
Avisar Rahamim - - 2006
BACKGROUND: The prevalence and incidence of blindness in Israel appear to be comparable to other western countries. Comparisons are difficult because of different definitions of blindness, and the uniqueness of the Israeli Registry of the Blind. OBJECTIVE: To characterize the population who were registered as Blind in Israel in the ...
Mapstone Mark - - 2006
The perception and control of self-movement relies on visual cues derived from the radial patterns of optic flow and from the relative motion of objects within view. Optic flow and object motion processing impairments might limit independent self-movement in a manner like that seen in ageing and in Alzheimer's disease. ...
Goldreich Daniel - - 2006
We compared the abilities of blind and sighted humans to distinguish grooved from smooth surfaces pressed against the stationary index fingertip. Ranging in age from 20 to 72 years, 37 blind and 47 sighted subjects participated in an automated two-alternative forced-choice tactile grating detection task. The tactile acuity of blind ...
Jadoon Mohammad Z - - 2006
PURPOSE: To determine the prevalence of blindness and visual impairment in adults aged 30 years and older in Pakistan and to assess socio-demographic risk factors. METHODS: Multistage, stratified (rural/urban), cluster random sampling, with probability proportional-to-size procedures, was used to select a nationally representative, cross-sectional sample of adults 30 years of ...
Klein Ronald - - 2006
PURPOSE: To describe the change in visual acuity in a 15-year period. DESIGN: Population-based study. METHODS: setting: Beaver Dam, Wisconsin. participants: 4068 persons 43 to 86 years of age at the time of a baseline examination in 1988 to 1990, and with follow-up examinations every five years thereafter. observation procedures: ...
Girkin Christopher A - - 2006
OBJECTIVE: To compare the diagnostic accuracy of the Moorfields regression classification (MRC) and subjective optic disc evaluation in discriminating early to moderate glaucomatous from nonglaucomatous eyes. DESIGN: Cross-sectional observational study. PARTICIPANTS: Two hundred thirty-three patients with glaucoma and 216 normal subjects were included in the analysis. Racial groups were defined ...
Li Yibin - - 2006
OBJECTIVE: To evaluate the prevalence of age-related maculopathy (ARM) in adult Chinese living in rural or urban regions of mainland China. DESIGN: Population-based prevalence study. METHODS: The study included 4439 subjects (aged 40 or more years) out of 5324 subjects invited to participate (response rate 83.4%). It was held in ...
Manning Hélène - - 2006
Young (21-26 years, n=20) and old (55-86 years, n=25) participants were tested for their ability to recognize raised letters (6-mm high, 1-mm relief) by touch. Spatial resolution thresholds were also measured with grating domes to derive an index of the degree of afferent innervation at the fingertip. Letter recognition in ...
Calixto Nassim - - 2006
PURPOSE: To determine the values in decibels of retinal sensitivity within the central 26 degrees of the visual field of normal subjects divided into homogenous age groups using the Octopus 1-2-3; to compare the values of retinal sensitivity we have found with those considered normal in the statistical package obtained ...
Renner Agnes B - - 2006
PURPOSE: To analyze the variability of clinical and electrophysiological characteristics in X-linked choroideremia and provide the first report of a negative electroretinogram in choroideremia. DESIGN: Retrospective study. PARTICIPANTS: The records of 18 male patients with choroideremia and 8 female carriers were evaluated. METHODS: The data were reviewed regarding visual acuity ...
Sadeghi André M - - 2006
PURPOSE: To estimate the age at diagnosis of retinitis pigmentosa and to determine visual acuity deterioration, visual field impairment and the frequency of cataracts in Usher syndrome types 1 and 2. METHODS: We carried out a retrospective study of 328 affected subjects with Usher syndrome types 1 and 2. Study ...
Laframboise Stéphane - - 2006
PURPOSE: This study was designed to evaluate the minimum interocular correlation (IOC) needed by the visual system to correctly perceive a static stereoscopic stimulus as a function of normal aging. It was also our goal to evaluate the feasibility of clinical charts testing this aspect of visual perception. METHODS: Stereoscopic ...
Horvat Michael - - 2006
For many populations the ability to move efficiently is compromised by an impaired muscular functioning. Strength development is necessary to overcome the effects of gravity to maintain posture and generate movement responses for mobility. The strength and power capabilities of individuals with total blindness (n = 12) were compared to ...
Scuffham, Paul Anthony
Purpose:We estimated the incidence and cost of accidental falls for the population with visual impairment, and the incidence and cost of falls directly attributable to visual impairment for the UK in 1999. Methods: A prevalence-based cost model of medical care was developed using national data for Accident and Emergency (A&E) ...
Brown Malcolm C - - 2006
A 35 month old child was referred for electrophysiology testing with pendular nystagmus, corresponding head oscillations and reduced vision. Flash visual evoked potential (VEP) revealed large responses at the right occiput (but not the left occiput) from the right eye and similar large responses at only the left occiput from ...
Kinsella-Shaw Jeffrey M - - 2006
The authors manipulated the circumstances in which individuals are typically embedded when standing upright by manipulating the intensity of light and the stationary structure of the environment. They expected that the manipulations would affect 12 older participants (aged 65-82 years) more than it would 12 younger participants (aged 22-24 years). ...
Mash Clay - - 2006
The current work examined age differences in the classification of novel object images that vary in continuous dimensions of structural shape. The structural dimensions employed are two that share a privileged status in the visual analysis and representation of objects: the shape of discrete prominent parts and the attachment positions ...
Kreusel Klaus-Martin - - 2006
OBJECTIVE: To characterize the clinical course of retinal angiomatosis (RA) in von Hippel-Lindau (VHL) disease. DESIGN: Retrospective observational case series from a tertiary referral center. PARTICIPANTS: Fifty-seven consecutive VHL disease patients with RA with a mean follow-up of 7.3 years. METHODS: A retrospective chart review was performed to characterize the ...
Santos N A - - 2006
The objective of the present study was to determine contrast sensitivity curves of concentric circular patterns with radial frequencies of 0.25, 0.5, 1.0, 2.0, and 4.0 cycles per degree in young and older adult volunteers. These parameters were also compared with sensitivity contrasts for sine-wave gratings. All participants had normal ...
Boerner Kathrin K Arlene R Gordon Research Institute, Lighthouse International, 111 East 59th Street, New York, NY 10022, USA. - - 2006
To enhance our understanding of coping and rehabilitation in the context of adaptation to disability by examining how coping may change over a two-year time period, and how different vision rehabilitation services may affect coping over time. Longitudinal two-wave study (baseline and two-year follow-up). Vision rehabilitation agency. Older adults with ...
Mollan S P - - 2006
AIM: To evaluate whether previous isotretinoin use induces permanent, measurable, and clinically significant abnormalities in night vision such that flying is precluded, and whether potential military and civilian commercial aviators should be screened routinely. METHODS: A retrospective, non-interventional, consecutive case series of 47 individuals with a confirmed history of oral ...
Almubrad Turki - - 2006
PURPOSE: This paper aimed to study the norms for clinical stereo-acuity in Saudi children aged between six and 12 years and to determine the 95 per cent confidence limits for stereo-acuity thresholds in this group of subjects. METHODS: A total of 1,383 normal subjects (883 male and 500 female) aged ...
van den Heuvel D M J - - 2006
BACKGROUND AND PURPOSE: Detection of longitudinal changes in white matter hyperintensities (WMH) by using visual rating scales is problematic. We compared a widely used visual rating scale with a volumetric method to study longitudinal white matter changes. METHODS: WMH were assessed with the visual Scheltens scale and a volumetric method ...
Louwagie Curtis R - - 2006
PURPOSE: This study was undertaken to determine whether grating acuity in early childhood can be used as a predictor of letter recognition acuity in patients with albinism. METHODS: In this retrospective study, we compared the binocular grating acuities of children with albinism (30 at age 1, 29 at age 2, ...
Wolffsohn J S - - 2006
To assess the repeatability of Eger macular stressometer (EMS) measures of photostress recovery and determine their association with other measures of visual function. EMS photostress recovery time was measured in 90 patients with bilateral exudative age related macular degeneration (AMD), 19 with bilateral atrophic AMD and 47 with both forms ...
Sosnoff Jacob J - - 2006
We tested the hypothesis that increases in minimal visual motor processing (VMP) time in older adults contribute to age-related increases in force variability. We manipulated the intermittency rate of visual information feedback over a 100-fold range as young (20-29 years old) and old (60-79 years old) participants produced isometric force ...
Monaco A - - 2006
AIM: The purpose of this study was to evaluate the activity of Anterior Temporal, Masseter, Sternocleidomastoid and Anterior Digastric muscles in response to changes in visual input in subjects with defective vision by means surface electromyography. METHODS: A total of 20 children, aged between 7 and 13 years, were evaluated. ...
Nilsson M - - 2006
BACKGROUND: Conventional visual tests are not sensitive enough to detect low degree neural damage, as 6/6 (1.0) visual acuity can be upheld with less than two-thirds of the normal number of optic nerve axons. The aim of the current study was to evaluate the physiologic properties of a new computerised ...
Xu Liang - - 2006
PURPOSE: To estimate the prevalence and distribution of blindness and low vision in Northern China. DESIGN: Population-based cohort study. METHODS: The Beijing Eye Study included 4438 subjects with an age of 40+ years. Mean age was 56.2 +/- 10.6 years (range, 40 to 101 years). RESULTS: Forty-three (1.0%) individuals had ...
Dineen Brendan - - 2006
PURPOSE: To determine whether a sample of the 50-year-old and above population would provide comparable information to a total population-based survey. METHODS: In 1996, a national eye survey of the total population in The Gambia was undertaken and the results concerning the prevalence and distribution of blindness and low vision ...
Ueda Tetsuo - - 2006
OBJECTIVE: This study was conducted to assess dynamic visual acuity (DVA) under pupil dilation. BACKGROUND: Pupil dilation may negatively affect driving performance. METHODS: Thirty healthy young adults (mean age 29.4 years) with pupil dilation participated in this study as the Mydrin P group. In addition to them, 15 healthy young ...
Lafuma Antoine J - - 2006
BACKGROUND: Sociological and economic risk factors of visual impairment have never been described in France at a national level as the association between the number of ophthalmologists per inhabitant and visual impairment prevalence. METHODS: Two national surveys were pooled. First, 2075 institutions were selected at random from the French Health ...
Gupta Rajen - - 2006
Intraocular inflammatory diseases are collectively known as uveitis. The aetiology of this condition can be diverse, as inflammation may result from direct involvement of the uveal tract or indirect inflammation of adjacent tissues. Uveitis can present challenges to diagnosis and treatment, and is potentially a severe sight-threatening disease. In the ...
Petrock Annie Marie - - 2006
Vergence eye movements were recorded from three different populations: healthy young (ages 18-35 years), adaptive presbyopic and non-adaptive presbyopic(the presbyopic groups aged above 45 years) to determine how the variability of the eye movements made by the populations differs. The variability was determined using Shannon Entropy calculations of Wavelet transform ...
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