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Vision Science and its Applications最新文献

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Limits to vertical fusion in the field of vision 视野垂直融合的限制
Vision Science and its Applications Pub Date : 2000-02-11 DOI: 10.1364/VSIA.2000.PD1
M. Hernández-Castañeda, C. Pedrono
{"title":"Limits to vertical fusion in the field of vision","authors":"M. Hernández-Castañeda, C. Pedrono","doi":"10.1364/VSIA.2000.PD1","DOIUrl":"https://doi.org/10.1364/VSIA.2000.PD1","url":null,"abstract":"Fusion is the property that allows the perception of a single image in a single binocular direction. Fusion is made up of two components: motor fusion in which vergence eye movements compensate for disparate retinal images, and sensory fusion, which is the property of the visual system that allows the perception of a single objet to be obtain from disparate images without using vergence eye movements.","PeriodicalId":428257,"journal":{"name":"Vision Science and its Applications","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123668114","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of 10 Hz Flicker on Retinal Hemodynamics Measured by the Heidelberg Retina Flowmeter 10hz闪烁对海德堡视网膜流量计测量视网膜血流动力学的影响
Vision Science and its Applications Pub Date : 1996-02-15 DOI: 10.1364/vsia.1997.ma.2
J. Harrison, W. Elliott, J. Kiel, W. Sponsel
{"title":"Effect of 10 Hz Flicker on Retinal Hemodynamics Measured by the Heidelberg Retina Flowmeter","authors":"J. Harrison, W. Elliott, J. Kiel, W. Sponsel","doi":"10.1364/vsia.1997.ma.2","DOIUrl":"https://doi.org/10.1364/vsia.1997.ma.2","url":null,"abstract":"Localized flicker-induced increase in retinal and optic nerve head blood flow appears to be a replicable and robust phenomenon. Several investigators have shown that there are localized increases in retinal and optic nerve head (ONH) blood flow and velocity when the retina is stimulated by light flickering at around 10 per second.","PeriodicalId":428257,"journal":{"name":"Vision Science and its Applications","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115968081","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Pupillometric investigation of an S-cone generated response in humans 人类s锥产生反应的瞳孔测量研究
Vision Science and its Applications Pub Date : 1900-01-01 DOI: 10.1364/vsia.1995.mb2
Eiji Kimura, R. Young
{"title":"Pupillometric investigation of an S-cone generated response in humans","authors":"Eiji Kimura, R. Young","doi":"10.1364/vsia.1995.mb2","DOIUrl":"https://doi.org/10.1364/vsia.1995.mb2","url":null,"abstract":"The development of an objective method for recording S-cone signals has not progressed as far in the field of pupillometry as in electroretinography (e.g., Sawusch, Pokomy & Smith, 1987) or visually-evoked cortical potentials (e.g., Gouras et al., 1993). While previous pupil studies provided converging evidence that S-cone signals contribute to the pupillary response (Banks & Munsinger, 1974; Young & Alpern, 1980; Krastel et al., 1985; Verdon & Howarth, 1988; Kimura & Young, 1994a), it is presently unclear whether or how well an S-cone generated pupillary response can be recorded without contamination from M- and L- cone generated responses. The ideal method would produce isolation of substantially large S-cone generated responses over a wide wavelength and intensity range.","PeriodicalId":428257,"journal":{"name":"Vision Science and its Applications","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117136985","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Reading Rate With RSVP is Affected by Font at a Low Luminance But Not at a High Luminance 低亮度下RSVP的阅读速率受字体影响较大，而高亮度下不受字体影响
Vision Science and its Applications Pub Date : 1900-01-01 DOI: 10.1364/vsia.1997.sub.3
K. Aquilante, R. Plass, D. Yager, Dina Shoykhet, Antonia Siciliano
{"title":"Reading Rate With RSVP is Affected by Font at a Low Luminance But Not at a High Luminance","authors":"K. Aquilante, R. Plass, D. Yager, Dina Shoykhet, Antonia Siciliano","doi":"10.1364/vsia.1997.sub.3","DOIUrl":"https://doi.org/10.1364/vsia.1997.sub.3","url":null,"abstract":"Miles A. Tinker defined legibility as the perception of letters, words and continuous text for reading: “The shapes of letters must be discriminated, the characteristic word forms perceived, and continuous text read accurately, rapidly, easily, and with understanding. In the final analysis, one wants to know what typographical factors foster ease and speed of reading” (Tinker, 1963).","PeriodicalId":428257,"journal":{"name":"Vision Science and its Applications","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121084803","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Reading Rates for RSVP and Scrolled Text are the Same Regardless of Acuity Reserve RSVP和滚动文本的阅读率是相同的，而不考虑锐度储备
Vision Science and its Applications Pub Date : 1900-01-01 DOI: 10.1364/vsia.1996.thb.3
E. M. Fine, E. Peli, A. Labianca
{"title":"Reading Rates for RSVP and Scrolled Text are the Same Regardless of Acuity Reserve","authors":"E. M. Fine, E. Peli, A. Labianca","doi":"10.1364/vsia.1996.thb.3","DOIUrl":"https://doi.org/10.1364/vsia.1996.thb.3","url":null,"abstract":"Whittaker and Lovie-Kitchin (1993) refer to the ratio of text character size to acuity threshold character size as acuity reserve (AR). Most studies of reading with normally sighted subjects have used character sizes about 4× the acuity threshold of the participants (0.33 deg). This is slightly larger than newspaper print (an 'x' measures approximately 1.8 mm) read from 40 cm, and Rubin and Turano (1992) have shown that varying the character size from 2 to 30× acuity threshold has almost no effect on reading rate from a computerized page display.","PeriodicalId":428257,"journal":{"name":"Vision Science and its Applications","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125104505","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Harmonic Analysis of the Strobe Flicker Electroretinogram in Retinal Disease 视网膜疾病频闪视网膜电图的谐波分析
Vision Science and its Applications Pub Date : 1900-01-01 DOI: 10.1364/vsia.1997.mb.1
K. Alexander, M. Levine, G. Fishman
{"title":"Harmonic Analysis of the Strobe Flicker Electroretinogram in Retinal Disease","authors":"K. Alexander, M. Levine, G. Fishman","doi":"10.1364/vsia.1997.mb.1","DOIUrl":"https://doi.org/10.1364/vsia.1997.mb.1","url":null,"abstract":"The electroretinogram (ERG) elicited by a flickering stimulus has become a useful clinical test for monitoring the progression of retinal disease and for inferring the pathophysiology of the disease process. In the clinical setting, the flicker ERG is usually obtained using a train of strobe flashes. The effect of the disease process is then either derived from an examination of the characteristics of the flicker ERG waveform, such as peak amplitude and implicit time, or from narrow-band filtering of the ERG at the stimulating frequency. However, the interpretation of the flicker ERG can be problematic in cases of retinal disease in which patients have unusual waveform shapes. An example is the double-peaked 30 Hz flicker ERG waveform reported by Miyake et al. (1987) in patients with \"incomplete\" congenital stationary night blindness (CSNB). We recently identified two patients with typical retinitis pigmentosa (RP) who showed also showed a double-peaked flicker ERG waveform, indicating that this response abnormality may be found in other types of retinal disorders besides incomplete CSNB. The purpose of the present study was to characterize the harmonic components of the flicker ERG in these RP patients in order to better understand the origin of this anomalous flicker response as well as the flicker ERG of normals.","PeriodicalId":428257,"journal":{"name":"Vision Science and its Applications","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125112667","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Why We Need to Pay Attention to Psychometric Function Slopes 为什么我们需要关注心理测量函数斜率
Vision Science and its Applications Pub Date : 1900-01-01 DOI: 10.1364/vsia.1997.sud.2
C. Tyler
{"title":"Why We Need to Pay Attention to Psychometric Function Slopes","authors":"C. Tyler","doi":"10.1364/vsia.1997.sud.2","DOIUrl":"https://doi.org/10.1364/vsia.1997.sud.2","url":null,"abstract":"One of the key tools of noninvasive visual assessment(p)(p) is the measurement of visual thresholds in a variety of test targets, including letter acuity charts, perimetric visual fields, spatial and temporal sensitivity functions, color discrimination thresholds and so on through many variants. Implicit in the measurement of any threshold (of either the detection or discrimination type) is a psychometric function of percent correct versus stimulus strength. A neglected variable in the analysis of psychometric data is the steepness of the psychometric function, which is usually assumed to be fairly stable across conditions and observers and therefore to play little role in determining the measured sensitivity levels and their disturbances by eye disorders.","PeriodicalId":428257,"journal":{"name":"Vision Science and its Applications","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116218969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
Monocular vs Binocular Visual Acuity as Measures of Vision Impairment 单眼与双眼视敏度作为视力障碍的衡量标准
Vision Science and its Applications Pub Date : 1900-01-01 DOI: 10.1364/vsia.1995.tuc2
G. Rubin, B. Munoz, L. Fried, S. West
{"title":"Monocular vs Binocular Visual Acuity as Measures of Vision Impairment","authors":"G. Rubin, B. Munoz, L. Fried, S. West","doi":"10.1364/vsia.1995.tuc2","DOIUrl":"https://doi.org/10.1364/vsia.1995.tuc2","url":null,"abstract":"The Salisbury Eye Evaluation (SEE) was initiated in the 1992 as a multi-disciplinary study of eye disease, vision impairment, and physical disability in older Americans. A representative sample of 2300 adults between the ages of 65 and 84 will participate in the study, one component of which is a prospective evaluation of the relationship between specific measures of visual function and the individual’s ability to perform everyday visual tasks such as read the newspaper, recognize faces, navigate independently, and use the telephone.","PeriodicalId":428257,"journal":{"name":"Vision Science and its Applications","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129543852","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Astigmatism, Amblyopia, and Visual Disability Among a Native American Population 美国原住民的散光、弱视和视力障碍
Vision Science and its Applications Pub Date : 1900-01-01 DOI: 10.1364/vsia.1996.sac.4
V. Dobson, R. Tyszko, Joseph M. Miller, E. Harvey
{"title":"Astigmatism, Amblyopia, and Visual Disability Among a Native American Population","authors":"V. Dobson, R. Tyszko, Joseph M. Miller, E. Harvey","doi":"10.1364/vsia.1996.sac.4","DOIUrl":"https://doi.org/10.1364/vsia.1996.sac.4","url":null,"abstract":"It is well documented that there is a high prevalence of both astigmatism and visual disability among some Native American peoples. As shown in Table 1, the prevalence of astigmatism ≥1 diopter (D) among Native American school-age children ranges from 30% to 87%, whereas the prevalence of astigmatism ≥1 D among urban school-age children ranges from 2% to 7%.","PeriodicalId":428257,"journal":{"name":"Vision Science and its Applications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129598813","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 21
Field Expansion for Homonymous Hemianopia using Prism and Peripheral Diplopia 利用棱镜和周边复视进行同义偏视的视场扩展
Vision Science and its Applications Pub Date : 1900-01-01 DOI: 10.1364/vsia.1998.sab.1
E. Peli
{"title":"Field Expansion for Homonymous Hemianopia using Prism and Peripheral Diplopia","authors":"E. Peli","doi":"10.1364/vsia.1998.sab.1","DOIUrl":"https://doi.org/10.1364/vsia.1998.sab.1","url":null,"abstract":"Visual field loss following a cortical lesion from stroke, brain surgery, or head trauma frequently manifests as homonymous hemianopia. Hemianopic field loss causes problems in mobility and navigation as well as reading. Patients frequently complain of bumping into obstacles on the side of the field loss and getting bruised on their arms and legs. The number of such accidents decreases with adaptation to the condition, presumably because patient are getting more cautious and use head and eye scanning techniques to avoid the pain. Despite such improvements many patients continue to suffer from the effects of limited visual field. Of great concern to many patients and vision rehabilitation personnel is the question of driving with such field defect. In all states where visual field requirements for driving are legislated, such field loss will disqualify drivers, unless qualified by special testing and licensing.","PeriodicalId":428257,"journal":{"name":"Vision Science and its Applications","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128745813","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
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