Visual attention outperforms visual-perceptual parameters required by law as an indicator of on-road driving performance.

PURPOSE: A variety of visual and psychometric tests have been developed for assessing on-road driving performance and fitness to drive. The diagnostic power of a state of the art psychometric test battery (Vienna Test System) combined with a set of standard visual parameters recommended for assessing fitness to drive is investigated using an on-road driving test. The study aimed to determine whether a psychometric test battery could predict older adults' on-road driving performance. The relevance of visual standards required by law is discussed. METHODS: Vision impairment is more prevalent in later adulthood and many studies on visual and cognitive impact on driving safety and performance therefore focus on adults above 60 years of age. We therefore acquired an extensive set of driving-related visual and psychometric performance parameters in a group of elderly drivers (N = 84, median age 69, SD 6.6 years). Visual assessment included foveal acuity, perimetric field size, and dynamic aspects of peripheral vision (termed "PP") in the computer-based Vienna Test System (VTS; Schuhfried), as well as letter contrast thresholds in foveal and parafoveal vision in a separate setup. A selection of psychometric driving-aptitude tests that demonstrated the battery's capacity to predict aspects of driving performance and safety were further conducted on the VTS. Driving performance was assessed in a standardized on-road driving test. Two independent observers rated driving performance using a fixed scoring system assessing the number of driving errors in pre-defined traffic situations. In addition, globalized driving competence scores were assigned on a 6-point scale. RESULTS: The test battery performed excellent in identification of good drivers but failed in the prediction of bad driving performance. Visual performance indicators required by German law were less indicative of driving ability than psychometric assessment. Selective and divided attention turned out to be much more important for predicting fitness to drive than either visual acuity, size of the visual field, or contrast sensitivity. CONCLUSION: Predicting fitness to drive by means of visual and psychometric tests is an ambitious challenge. On the one hand sensitivity of a multi-disciplinary test-battery is too low to predict reliable driving ability in diagnostic settings which require an unambiguous interpretation of test results for individual drivers. Low sensitivity and low predictive values are incompatible with that objective. On the other hand, the results are valuable for a routine screening of fitness to drive. For that case, the assessment of attentional abilities in particular appears to be promising. Performance measures of divided and selective attention showed themselves to be the most predictive for fitness to drive in a sample pre-screened for clear visual deficits. Visual performance parameters required by law, in contrast, had no meaningful impact on driving performance, indicating a gap between mandatory regulations of state authorities and research results. Our results suggest that visual acuity tests designed for clinical diagnosis and monitoring of eye diseases should not at all be the choice for a screening of fitness to drive.

[Blindness and social security in Italy: critical issues and proposals.] / La cecità civile in Italia: criticità e proposte.

In Italy, blindness and low vision are ruled by Law 138/2001: two categories of blindness (corresponding to the one in the current WHO classification), receiving economical remuneration, and three categories of low vision, not directly remunerated. The problem ensues that low vision patients, who better gain from rehabilitation, have no economical contribution to undergo such care pathways; moreover, in Italy the evaluation has not yet shifted from "visual function" to "functional vision", thus lacking a holistic evaluation of visual dysfunction impact on the patient's daily life skills. To quantify the visual function of the examinee, only subjective performance (visual acuity and/or visual field) is evaluated in accordance with Law 138/2001, thus paving the way to malingerers: the "false blinds" phenomenon has recently reached the media. The Authors suggest that a correlation between the individual anatomical picture of the pathology/ies and the visual performance, obtained in patients with similar lesions undergoing controlled clinical studies reported in the ophthalmological literature, could offer more objective values to quantify the visual function.

[Social Law Entitlements and Compensations for Visually Impaired Patients in Germany, Focussed on Glaucoma]. / Sozialmedizinische und versorgungsrechtliche Aspekte des Glaukoms.

Although prevention of progression is the most important issue in the treatment of glaucoma patients, information on visual aids and social law entitlements is also helpful. In this article, the main aspects of compensation for visual impairment are outlined so that you can competently support your patients, without much effort, with helpful tips and appropriate instructions.

[On the Interaction between Loss of Earnings, Disability and Inability to Work]. / Zur Interaktion von Minderung der Erwerbsfähigkeit, Invalidität und Arbeitsunfähigkeit.

Loss of earnings, disability and inability to work may be used to assess the same health damage, but these legal terms are defined differently, as they have different objectives. Important practical distinctions between these terms are explained and their inter-relationships are discussed.

Don't put a tag on us: disability is not a side issue.

Improving the health and well-being of people with disabilities is fraught with challenges. W Aubrey Webson tells Fiona Fleck about the progress made over the last two decades.

Barriers to sight impairment certification in the UK: the example of a population with diabetes in East London.

BACKGROUND: This study assessed the barriers to sight impairment certification in the East London Borough of Tower Hamlets amongst patients attending the Diabetic Retinopathy Screening Service (DRSS). METHODS: All patients who attended DRSS between 1stApril 2009 and 31st of March 2010 and whose recorded best corrected visual acuity (BCVA) at DRSS fulfilled the requirements for sight impairment in the UK were included. An additional 24 patients whose general practitioners (GPs) reported them to be certified blind due to no perception of light (NPL) vision were re-examined to ascertain the reason for certification, and their potential social and visual aids needs. RESULTS: 78 patients were identified with certifiable vision and were reviewed: 10 deceased in the preceding 12 months; 60 were not known to be certified. Of these, 57 attended further assessment, 27 were found to have non-certifiable vision, 9 were referred for further interventions, 9 were certified and 9 were found to be eligible, but declined certification. Five patients were registered due to diabetic eye disease.Of those 24 reported by the GP of NPL vision, only 4 had true NPL, the rest had usable vision. Only two of them were certified blind due to diabetes. CONCLUSIONS: Our data shows that sight certification in patients with diabetes might be underestimated and these patients often have non-diabetes related visual loss. We propose that data on certifiable visual impairment could serve, along with existing certification databases, as a resource for quality of care standards assessment and service provision for patients with diabetes.

Aplicación de la Ley de Dependencia en los pacientes con baja visión / Dependent Care Act application in low vision patients

Introducción. La Ley de Dependencia surge en España como un reto de la política social, cuyo objetivo es atender las necesidades de las personas que requieren apoyo para realizar las actividades esenciales de la vida diaria. El objetivo de este estudio es conocer las características de la población que se encuentra en situación de dependencia por el padecimiento de una afección oftalmológica. Material y métodos. Estudio descriptivo transversal a partir de la entrevista personal y revisión de la historia clínica de un grupo de pacientes atendidos en Consultas Externas del Servicio de Oftalmología del Hospital Clínico Universitario de Valencia, partiendo de los datos vertidos por un cuestionario adaptado a partir de la Encuesta de Discapacidades, Deficiencias y Estados de Salud realizada por el Instituto Nacional de Estadística. Resultados. La media de edad de los pacientes es de 65,8 años, mayoritariamente mujeres y laboralmente activos, con una edad media al inicio de la discapacidad de 59,1 años. Predominó la afección corneal como diagnóstico y la enfermedad común como etiología. La media de la agudeza visual fue de 0,4. Más de la mitad de los pacientes presentaron una situación clínica que podría empeorar con el tiempo. La mayor parte de los pacientes no había solicitado ayuda alguna. Conclusiones. Los pacientes estudiados siguen el mismo perfil poblacional que los estudios precedentes sobre prevalencia de la dependencia. Sería necesario adoptar medidas para mejorar la información que reciben los pacientes sobre sus derechos en este marco, facilitar los trámites burocráticos para la percepción de ayudas, disminuir el tiempo de demora en la valoración de la situación de dependencia y reforzar los dispositivos asistenciales para las personas dependientes(AU)

Introduction. The recent Promotion of Personal Autonomy and Care for Dependent Persons Act has opened up the opportunity to complete the social welfare system generated for the dependent and, perhaps only partly, to change the system of social networks that has meant, until now, their only support. The main goal of the present study is to know the characteristics of dependent people with low vision, the level of dependency and the personal, family and social impact of this situation. Materials and methods. Descriptive cross-sectional study after personal interview and clinical records review of a group of patients belonging to the Ophthalmology Service of the Hospital Clínico Universitario of Valencia. It is based on the results of an adapted questionnaire from the Disability, Deficiency and Health Survey conducted by the Spanish National Statistics Institute. Results. The mean age of the patients was 65.8 years, mostly women and occupied, with a mean age of 59.1 years at the beginning of the disability. The prevailing diagnose was corneal pathology and common disease as etiology. The mean visual acuity was 0.4. Clinical status of over 50% of the patients could worsen within time. Most of the patients had not applied for any assistance. Conclusion. The studied patients follow the same demographic profile as shown on previous studies over dependency. Facilities for paperwork issues, information, evaluation and assistance should be implemented in order to improve the attention to dependent people(AU)

Young deafblind adults in action: becoming self-determined change agents through advocacy.

Six young deafblind adults took a 1-week course on civic engagement and advocacy, which provided the focus for a participatory action research study with a collective case study design. They selected advocacy topics, were briefed on these policy issues, and were paired with experienced mentors for meetings with legislators in Washington, DC. Eight themes were identified from constant comparative and in vivo analysis of classroom discussion notes, interviews, and journals: (a) defining advocacy and advocate, (b) rights and equality, (c) expectations, (d) role of education in change, (e) deafblind expertise, (f) characteristics of effective change agents, (g) advocacy is teamwork, (h) future advocacy. In the classroom, the participants learned about policy issues, communication considerations, and leadership, then applied this knowledge in the legislative arena. Through the advocacy process, they learned to apply their personal strengths as advocates and experienced the importance of teamwork in advocacy.

Deslocamento de deficientes visuais em vias públicas da região metropolitana de Belém/PA / Mobility of visually impaired people in streets of the metropolitan region of Belém/PA

Introdução: Em uma estrutura urbana, o sistema de deslocamento é o articulador das atividades econômicas, culturais e sociais. Porém,alguns gestores deixam de construir em seus municípios uma infraestrutura de transporte adequada para a circulação de pedestres,em especial de portadores de necessidades especiais (PNE). Objetivo: Levando-se em consideração a dificuldade de acessibilidade existente na mobilidade urbana desses indivíduos e a condição real das calçadas na maioria das cidades brasileiras, faz-se necessário obter informações sobre possíveis alterações que o piso possa provocar no sistema locomotor durante a marcha. Material e métodos: Foram coletados dados por meio de entrevistas semiestruturadas (questionários de opinião) a 54 deficientes visuais a fim de verificar o grau de satisfação com as calçadas de Belém e com a utilização do piso com sinalização tátil de alerta e tátil direcional da Prefeitura Municipal de Belém. Resultados: Foi encontrado, entre outros resultados, que a maior parte dos investigados sente alguma dificuldade em se deslocar pelas calçadas da cidade e a significativa minoria considera ruim o deslocamento na calçada cidadã. Conclusão: Pode-se concluir que a dificuldade de deslocamento pelas calçadas da Região Metropolitana de Belém afeta enormemente aos deficientes visuais.

Introduction: In an urban structure, the transportation system isthe articulation of economic, cultural and social activities. However,some managers fail to build in their towns an adequate transportation infrastructure for pedestrian’s circulation, especially people with special needs (PSN). Objective: Taking into account the difficulty of existing accessibility in the urban locomotion of these individuals and the actual condition of sidewalks in most Brazilian cities, it is need to obtain information about possible injuries that pavement may cause in the locomotor system during gait. Method: Data were collected by means of semi-structured interviews. The questionnaires were distributed to 54 visually impaired PSN, to verify the level of satisfaction with the sidewalks of Belém and with the tactile warning and tactile directional signage of local government of Belém. Results: The results show that most of the interviewees have some kind of difficulty to move around the sidewalks of the city and the minority believes that the urban sidewalk is bad to move around. Conclusion: We can conclude that visually impaired users in the metropolitan region of Belém are enormously affected due to difficulty in travelling on the sidewalks.

Individualized functional work evaluation and vision: a case study in reasonable accommodation.

A case study is provided where functional capacity evaluation, work place assessment, and driver rehabilitation assessments were combined to produce an individualized functional work evaluation. A human rights complaint was launched by worker who alleged that her employer had determined that her vision impairment rendered her incapable of meeting her job demands, which could not be 'reasonably accommodated'. An evidence based practice approach and clinical reasoning process utilized by the assessor in developing an individualized evaluation is described. The individualized evaluation developed by the assessor is consistent with the clinical trend towards the inclusion of direct observation of actual occupational performance, in making a determination of work ability. The resulting individualized evaluation was integral to the Human Rights Tribunal in determining whether the worker's limitations could be "reasonably accommodated.''

Do blind people see race? Social, legal, and theoretical considerations.

Although the meaning, significance, and definition of race have been debated for centuries, one thread of thought unifies almost all of the many diverging perspectives: a largely unquestioned belief that race is self-evident and visually obvious, defined largely by skin color, facial features, and other visual cues. This suggests that "seeing race" is an experience largely unmediated by broader social forces; we simply know it when we see it. It also suggests that those who cannot see are likely to have a diminished understanding of race. But is this empirically accurate?I examine these questions by interviewing people who have been totally blind since birth about race and compare their responses to sighted individuals. I not only find that blind people have as significant an understanding of race as anyone else and that they understand race visually, but that this visual understanding of race stems from interpersonal and institutional socializations that profoundly shape their racial perceptions. These findings highlight how race and racial thinking are encoded into individuals through iterative social practices that train people to think a certain way about the world around them. In short, these practices are so strong that even blind people, in a conceptual sense, "see" race. Rather than being self-evident, these interviews draw attention to how race becomes visually salient through constitutive social practices that give rise to visual understandings of racial difference for blind and sighted people alike. This article concludes with a discussion of these findings' significance for understanding the role of race in law and society.

Community rehabilitation of disabled with a focus on blind persons: Indian perspective.

India, the largest democratic country in the world, is marching ahead strongly on the growth and developmental front and is poised to be the leader in the market economy. This role creates and increases far greater responsibilities on us in ensuring that the benefit of the developmental cycle reaches each and every citizen of this country, including the able and the disabled ones. It has been enshrined in the Constitution of India to ensure equality, freedom, justice, and dignity of all individuals and implicitly mandates an inclusive society. With increase in consideration of quality parameters in all spheres of life including availability, access, and provision of comprehensive services to the disabled, it is pertinent to have a look on the contribution of government in keeping the aspiration and commitment towards common people. The article attempts to review the concept of rehabilitation for the disabled keeping a focus on the blind person, and list out the activities, programs/schemes, institutional structure and initiatives taken by the Government of India (GOI) for the same and the incentives/benefits extended to blind persons. The article concludes by reiterating the importance of individual need assessment and mentioning new initiatives proposed on Low Vision services in the approved 11th plan under National Programme for Control of Blindness (NPCB). The source of information has been annual reports, notification and the approved 11th five-year plan of GOI, articles published with key words like rehabilitation, disability, assistive devices, low vision aids, and/or blind person through the mode of Internet. Annexure provides a list of selected institutions in the country offering Low Vision services compiled from various sources through personal communication and an approved list of training institutes under NPCB, GOI offering Low Vision training.

[Evaluation of quality of life characteristics and grade of legal visual impairment].

PURPOSE: To evaluate the possible correlation between quality of life (QOL) characteristics and grades of legal visual impairment. MATERIALS AND METHODS: Quality of life characteristics associated with various causes of visual loss were investigated in 237 Japanese patients in the low-vision care clinic at Tokyo University Hospital, who had been issued the official ID and handbook for the physically handicapped. The main causes of vision loss were glaucoma (87 patients), macular degeneration (35) and diabetic retinopathy (34). Using a previously developed questionnaire, we assessed the correlation between the disability index (DI) as a quality of life characteristic, and the grade of legal visual impairment. RESULTS: Total DI was 1.24 +/- 0.43, showing a very significant correlation with Handicapped Handbook grades (r = -0.44, p < .0001). The correlation coefficients were -0.63 (p < 0.0001) for diabetic retinopathy, -0.50 (p = 0.002) for macular degeneration, and -0.16 (p = 0.14) for glaucoma patients. CONCLUSION: The needs of low-vision patients correlate with the grade of legal visual impairment and it is important to understand that the needs of low vision patients differ for each disease.

El impacto de la Ley de Dependencia en los pacientes con baja visión / The impact of the dependency law in low vision patients

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[Determination of visual function in legal assessment]. / Objektivierung der Sehfunktionen bei Begutachtungen.

For the determination of visual function an objective assessment is essential. Basic ophthalmologic examinations such as measurement of visual acuity and perimetry are dependent on patient statements. If the patient is not being able to provide adequate answers, as is the case for small children or mentally retarded patients, or also if the accuracy of the patient's statements is doubtful or simulation or aggravation is suspected, the denoted function in the evaluation of visual acuity has to be checked on consistency using different examination methods, and the results of objective functional tests, such as electrophysiology and morphological features, have to be taken into account.

[Errors and difficulties in the assessment of severely handicapped and blind persons]. / Fehler und Schwierigkeiten der Beurteilung im Schwerbehinderten- und Blindenrecht.

The assessment of ophthalmological examination reports in social law is usually based on subjective statements by the petitioner made towards his ophthalmologist. Insufficient consideration of objective results as well as the limited experience of the officials in charge may lead to errors. An analysis of patients for consideration as legally blind in Baden, Germany, between 1980-1999, based upon 2,265 doubtful applications resulted in 33.3% false estimates by the patient's ophthalmologist. The reason, in the vast majority of cases, was misjudgment involving visual field defects or even missing manual-kinetic Goldmann perimetry. It may be assumed that this is also true for petitions in legislation for severely handicapped persons, particularly because the officials in charge are rarely ophthalmologists.