British Journal of Visual Impairment

Age-related macular disease (AMD) is a multifactorial degenerative condition affecting the central area of the retina. Patients with AMD report that eye care practitioners are not giving consistent advice regarding nutrition and reported confusion as to what advice, if any, to follow. The aim of this study was to design and conduct a preliminary evaluation of a flowchart to support eye care practitioners in providing accurate, evidence-based nutritional advice to their patients. A flowchart was designed to take practitioners through a decision-making process that would determine whether a patient matched the Age-Related Eye Disease Study (AREDS) 2 eligibility criteria for supplementation. The flowchart was evaluated using a qualified and student optometrist cohort, with both cohorts completing confidence scales and students completing clinical scenarios. Qualified participants showed a significant increase in confidence scores from the initial survey (M = 69.7%, standard deviation [SD] = 16.2%) to the second survey after use of the flowchart for 2 weeks (M = 82.1%, SD = 11.6%; t(45) = 7.33, p < .001; rs = .61, p < .001). The student participants also increased confidence scored after receiving the flowchart (M of first survey = 41.7, SD = 14.6; M of second survey = 69.1, SD = 1.7; t(25) = 7.92, d = .81, p < .001) and increased the number of correct answers on five clinical scenarios. Overall, the flowchart has proved to be useful in boosting the self-efficacy of both qualified practitioners and student practitioners, as well as improving clinical decisions made by student practitioners.

Partial and homonymous visual field loss (HVFL) is a common consequence of post-chiasmatic injury to the primary visual pathway or injury to the primary visual cortex. Different approaches to rehabilitation have been reported for older adults with HVFL and there is evidence to support the use of compensatory training over other proposed therapies. We reviewed the literature to investigate the current state of the art of rehabilitation and habilitation strategies for children and young people with HVFL, and whether there is enough evidence to support the use of these strategies in the paediatric population. We have provided an overview of the existing literature on children and young people with HVFL, a brief overview of rehabilitation strategies for adults with HVFL, and evidence on whether these different interventions have been applied with children and young people effectively. We found that there have been very few studies to investigate these strategies with children and young people, and the quality of evidence is currently low. New research is required to evaluate which strategies are effective for children and young people with HVFL and whether new strategies need to be developed.

This investigation was aimed at validating the feelings of patients with thyroid-associated orbitopathy (TAO), who commonly report psychosocial impairments due to the cosmetic disfigurement caused by the disease. In all, 50 adults, equally divided between two experimental conditions, participated. Adults’ visual behavior was recorded with a corneal reflection eye-tracking system as they viewed side-by-side photograph pairings of affected and non-affected individuals’ upper facial region. Adults in Experiment 1 viewed photographs of patients before corrective surgery and those in Experiment 2 viewed photographs of patients after corrective surgery. Visual behavior measures of interest included the number of stares and cumulative time spent staring. Adults appear to differentially attend to patients with TAO, staring more often and longer at these individuals, regardless of surgical correction. TAO patients’ feeling of self-consciousness and being more concerned about their appearance may be due to differential persistence of fixations (i.e. staring) from their peers.

A repeated-measures design with block randomization was used for the study, in which 15 adults with visual impairments attempted to detect the drop-offs and obstacles with the canes of different lengths, swinging the cane in different widths (narrow vs wide). Participants detected the drop-offs significantly more reliably with the standard-length cane (79.5% ± 6.5% of the time) than with the extended-length cane (67.6% ± 9.1%), p < .001. The drop-off detection threshold of the standard-length cane (4.1 ± 1.1 cm) was also significantly smaller than that of the extended-length cane (6.5 ± 1.8 cm), p < .001. In addition, participants detected drop-offs at a significantly higher percentage when they swung the cane approximately 3 cm beyond the widest part of the body (78.6% ± 7.6%) than when they swung it substantially wider (30 cm; 68.5% ± 8.3%), p < .001. In contrast, neither cane length (p = .074) nor cane swing arc width (p = .185) had a significant effect on obstacle detection performance. The findings of the study may help orientation and mobility specialists recommend appropriate cane length and cane swing arc width to visually impaired cane users.

In the French braille code, becoming an efficient contracted braille user requires a considerable investment in time and effort. Students must learn 1217 abbreviations to allow time- and space-saving, but practitioners are questioning whether this investment is worthwhile. The purpose of this study was to examine the frequency of contracted braille use by adults and their perceptions about the importance of this code. A total of 23 Quebec braille users (aged 18–40 years) completed a telephone interview with quantitative questions about the frequency of their braille use, and their use of technologies as well as qualitative items regarding their perceptions of braille now and in the future, 12 of whom completed a brief braille reading test.In all, 85% of participants used uncontracted braille for reading, 59% used contracted braille, and 95% used text-to-speech. Contracted braille was used mostly for tasks that require continuous reading (e.g. novels). All except one recognized the need to learn uncontracted braille and 78% considered contracted braille useful. In all, 11 participants indicated that they “can read faster” with contracted braille, a finding that was not replicated by our reading test, whereby reading speeds were not statistically significantly different between the two conditions . The portrait that emerges from the current use of contracted French braille in Quebec indicates that it is not often used in the life of blind individuals. However, the faith of our participants in the relevance of the contracted code is still very strong. This may be explained by the fact that braille is part of their identity. The potential increase in reading speed with contracted braille may not justify the time, effort, and cognitive resources required to learn/teach this code in French. The educational challenge remains to find the proper balance between the uses of French braille versus other technologies such as text-to-speech.

Mobile communication technology is an essential part of life of adolescents nowadays, and those with visual impairments are no exception. In focus group interviews with students from a school for the blind and the visually impaired in Rio de Janeiro, Brazil, we found that, despite the visual nature of social media, they use and enjoy these resources as much as their sighted peers. These students are aware of the possibilities and constraints that social media might bring to them but, with the help of assistive technology, make the most of it. After listening to their voices, we noticed that it is high time we incorporate social media in our pedagogical practice, in order to develop their learning process and life skills.

This study evaluated a smartphone-based program to promote independent leisure and communication engagement in five participants with visual impairment and mild intellectual disability. A smartphone with Android 5.1 Operating System and S-Voice application, Internet connection, contacts unit, and media player was used. The smartphone was fitted with MP3 files of leisure events and the names and telephone numbers of selected communication partners. The participants were taught to use the smartphone (open the files and reach the partners) through specific verbal utterances. The results showed that all participants learned to use the smartphone. Their independent engagement times (leisure plus communication combined) increased from baseline values of zero to means of between about 75% and 85% of the session lengths. These results indicate that a smartphone-based program may support independent leisure and communication engagement in people with visual impairment and intellectual disability who possess verbal skills.

The aim of our case study was to examine the perceived experiences of participation in physical activity (PA). The cases comprised two individuals with blindness (a girl aged 12 years and a man aged 23 years), both of whom lived in Norway and had succeeded in becoming physically active. Both participants were recruited from Statped, the Norwegian support service for special needs education. Data were gathered from individual structured interviews with open and closed questions. A narrative descriptive analysis was used to analyse the data. The results showed that important factors for the blind participants’ PA participation were having good instructors, support or visual interpreters, active family members, a safe sports environment, having tried many sports, private transportation to the exercise facilities, and a positive social environment, with peers, friends, and family members. Although some differences were found between the participants’ responses, important reasons for them to engage in PA were stated as the sense of fun, energy, and self-esteem that they derived from it, in addition to physical fitness. In conclusion, the study provides knowledge of factors that could increase PA adherence of individuals with blindness being included in PA and sports together with sighted peers.

Over 80% of the world’s people with visual impairment are living in countries which are financially dire. And over 50% of them are above the age of 50 years. The need for a system or of technology that would enable this sector of people to perceive the world in much the same way as the rest of us is imminent. The article presents a novel way to eliminate the use of data acquisition system (DAQ) systems/micro-controllers by incorporating a headphone jack. With the aid of a headphone jack, a cost-effective wearable ultrasonic module that would enable people with visual impairment to virtually see is implemented. Unlike conventional walking canes or its derivatives that do not offer effective feedback, the ingenuity in the proposed module is that it offers audible feedback to the user. The ultrasonic sensor is coupled with the headphone jack and the output of the sensor is relayed to the earphones with the help of a free mobile app (Mic To Speaker). This substantially reduces the cost of the module (since no DAQs/micro-controllers are used) and the processing needed as well.