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NCT06241209
In patients with hemianopsia following stroke or brain injury, we will determine if stimulating the visual field with images from a PowerPoint slide set can increase the visual field.
NCT07442461
This study aims to investigate how visual impairment affects neurophysiological and biomechanical responses during real-world navigation and daily activities, with a focus on the rehabilitative feasibility and impact of assistive technologies. These technologies include applications and wearable devices designed to support various aspects of daily living for individuals with visual impairment. The VIS4ION platform (Visually Impaired Smart Service System for Spatial Intelligence \& On-board Navigation), a wearable system providing tactile and auditory feedback, is one component of this broader study. VIS4ION is designed to enhance environmental awareness and reduce cognitive load during mobility tasks for the visually impaired.
NCT06075147
This is an observational study in which only data are collected from people who have already been prescribed aflibercept 8 mg by their own doctors. In this study, data from adults with visual impairment due to neovascular age-related macular degeneration (nAMD) or diabetic macula edema (DME) will be collected and studied. Visual impairment is any degree of vision loss that affects a person's ability to perform daily activities. nAMD is an eye disorder that causes vision loss due to the growth of abnormal blood vessels that leak blood or retinal fluid into the macula (the central part of the retina). nAMD is a leading cause of vision loss for people aged 50 and older. DME is a diabetes-related eye disorder. In DME, the macula swells up due to fluid leakage from damaged blood vessels, resulting in vision problems. Aflibercept 8 mg is a drug that is injected into the eye. It works by blocking a protein called vascular endothelial growth factor (VEGF) which causes abnormal growth and leakage of blood vessels at the back of the eye. Aflibercept 8 mg has been submitted for approval for the treatment of visual impairment due to nAMD and DME based on the results from 2 studies called PHOTON and PULSAR. This study will begin once approval is obtained. Currently, no real-world data are available for aflibercept 8 mg. The main purpose of this study is to collect more information about how well aflibercept 8 mg injection works in people with nAMD and DME. This study will include participants who have not received any prior treatment for nAMD or DME and participants who have. The main information that researchers will collect: the change in vision test scores called the best corrected visual acuity (BCVA) after 12 months of treatment. Data will be collected from February 2024 to September 2027 and will cover a period of up to 24 months per participant. The data will be collected using medical records and by interviewing the patients during regular visits that take place in routine practice. Researchers will observe participants from the first injection of aflibercept 8 mg until the end of the observation. In this study, only available data from regular visits will be collected. No visits or tests are required as part of this study.
NCT05439759
A greater understanding of plasticity after central vision loss can inform new therapies for treating low vision and has the potential to benefit millions of individuals suffering from low vision. The treatment of low vision is particularly relevant to the mission of the National Eye Institute (NEI) to support research on visual disorders, mechanisms of visual function, and preservation of sight. The comparison of different training and outcome factors is in line with the National Institute of Mental Health (NIMH) Research Domain Criteria (RDOC) framework and studies in an aging population are consistent with the mission of the National Institute on Aging (NIA).
NCT06984822
This study aims to investigate the association between serum biomarkers and clinical response to anti-VEGF or dexamethasone implant by assessing OCT-biomarkers in patients with diabetic macular edema, DME, and to compare these with a group of naive patients (those not previously treated for DME).
NCT05829135
To assess the use of contact lenses with transitions technology to improve glare, light sensitivity and overall visual comfort in patients with visual impairment.
NCT06701617
Restorative visual rehabilitation is frequently used to enhance the visual development and function of children with low vision. An important strategy within this field is visual stimulation, which is particularly used for infants and toddlers with low vision, as well as for children who have both developmental disabilities and low vision.This study has two primary objectives.The first objective is to examine the effect of using intensive, specific, and flickering black-and-white checkerboard patterns to enhance visual function in children with mild to moderate low vision. The second objective is to develop a visual stimulation program tailored for children with severe or profound multiple disabilities and visual impairments, and to evaluate its effectiveness.
NCT06599996
The overarching objective of this project is to transform access to assistive communication technologies (augmentative and alternative communication) for individuals with motor disabilities and/or visual impairment, for whom natural speech is not meeting their communicative needs. These individuals often cannot access traditional augmentative and alternative communication because of their restricted movement or visual function. However, most such individuals have idiosyncratic body-based means of communication that is reliably interpreted by familiar communication partners. The project will test artificial intelligence algorithms that gather information from sensors or camera feeds about these idiosyncratic movement patterns of the individual with motor/visual impairments. Based on the sensor or camera feed information, the artificial intelligence algorithms will interpret the individual's gestures and translate the interpretation into speech output. For instance, if an individual waves their hand as their means of communicating "I want", the artificial intelligence algorithm will detect that gesture and prompt the speech-generating technology to produce the spoken message "I want." This will allow individuals with restricted but idiosyncratic movements to access the augmentative and alternative communication technologies that are otherwise out of reach.
NCT06997354
Some children present visual difficulties linked not to damage to the eye, but to damage to the brain. This type of dysfunction of the visual cerebral pathways leads, for example, to difficulties in recognition, visuomotor coordination or visuo-spatial disorders. These highly specific disorders are known as "cortical visual impairment" (CVI). Despite their real impact on children's development, these disorders are still poorly diagnosed in the French-speaking world. As a result, follow-up and care for these children are poorly adapted. A better understanding of neurovisual disorders and the availability of validated tools in French are therefore essential. Indeed, it is currently considered that 3 to 4% of children aged four to six, i.e. around one child per kindergarten class, have a CVI following a neuro-logical lesion acquired in the perinatal period. Because of the lack of a valid tool in French, the aim of the present study is to provide the results of a validation study of a parental questionnaire for screening children with warning signs of CVI in French. This questionnaire will be offered online using the Qualtrics tool. In order to evaluate the relevance of this questionnaire, it will be proposed, on the one hand, to parents whose child (aged 3 to 12) does not present any particular developmental difficulties, and on the other hand, to parents whose child (aged 3 to 12) seems to present signs of neurovisual disorders. By comparing their answers, the investigators hope that certain questions will reveal elements typical of neurovisual disorders/CVI, thus demonstrating the relevance of this questionnaire in facilitating diagnosis.
NCT06968702
The ICOPE Brazil study aims to understand aging trajectories in Brazil, especially healthy aging trends based on intrinsic capacity, a collective of mental and physical capacities one may have to maintain their functional ability to execute daily life activities. Tests and questionnaires will be applied to collect data on mobility capacity, cognitive capacity, nutritional status, vision, and hearing (sensorial) capacities, and mental health. These assessments are in consonance with what the World Health Organization proposed in the Integrated Care for Older People Program (ICOPE). Participants will be followed up for three years, and the primary outcomes of interest are loss of intrinsic capacity, mobility impairment, cognitive impairment, incident depressive symptoms, loss of functional ability, incident frailty, incident sarcopenia, incident falls, hospitalization, multimorbidity, and mortality.
NCT06308601
Purpose: This project aimed to examine the effects of laughter yoga, which is accepted as an international nursing initiative, on loneliness, anger and salivary cortisol levels in visually impaired individuals. When the national and international literature was examined, no project was found that measured the results of laughter yoga as an intervention for visually impaired individuals. For this reason, planning an original project in this field aims to contribute to the literature. Thanks to the evidence obtained, laughter yoga, an innovative approach, can be disseminated in institutions and organizations serving visually impaired individuals as an evidence-based practice that can improve the social skills of individuals. Scope and Target Audience: The project will be carried out with visually impaired individuals receiving services in the Disabled Persons Department within the Atatürk Provincial Public Library located in Konak district of Izmir. In this section, services are provided to 250 members who actively use the library and to visually impaired people from all over Turkey. Method and Expected Result: The project was planned in a randomized controlled, pre-test post-test, single-blind follow-up consultancy design. With this initiative, a social rehabilitation environment will be provided for visually impaired individuals by taking an approach based on respect, understanding and awareness. Laughter yoga is expected to reduce the level of anger and loneliness in visually impaired individuals. At the same time, laughter yoga is expected to reduce cortisol levels, which are known to increase when faced with stress factors, and increase serotonin, which is associated with happiness and vitality, and endorphine, known as the body's natural painkiller. With laughter yoga sessions, a social environment will be created where visually impaired individuals will have an active and independent experience. Thanks to the expected evidence, laughter yoga can be popularized both in visually impaired individuals and in individuals with other disabilities. Within the scope of protecting and improving health, laughter yoga can be planned to be carried out as a routine nursing practice in disabled centers. Thus, by creating an environment where visually impaired individuals and nurses come together, a more accessible health service will be provided to individuals with special needs.
NCT03781583
The National Eye Institute estimated about 3 million people over age 40 in the US had low vision in 2010 and projects an increase to nearly 5 million in 2030 and 9 million in 2050. Current assistive technologies are a patchwork of mostly low-technology aids with limited capabilities that are often difficult to use, and are not widely adopted. This shortfall in capabilities of assistive technology often stems from lack of a user-centered design approach and is a critical barrier to improve the everyday activities of life (EDAL) and the quality of life (QOL) for individuals with low vision. An intuitive head mounted display (HMD) system on enhancing orientation and mobility (O\&M) and crosswalk navigation, could improve independence, potentially decrease falls, and improve EDAL and QOL. The central hypothesis is that an electronic navigation system incorporating computer vision will enhance O\&M for individuals with low vision. The goal is to develop and validate a smartHMD by incorporating advanced computer vision algorithms and flexible user interfaces that can be precisely tailored to an individual's O\&M need. This project will address the specific question of mobility while the subject crosses a street at a signaled crosswalk. This is a dangerous and difficult task for visually impaired patients and a significant barrier to independent mobility.
NCT06398080
The purpose of this research study is to observe the patient's clinical care and how EYLEA® HD is used as a treatment in real-world settings. Patients are asked to join the study because they have either neovascular age-related macular degeneration (nAMD/wet age-related macular degeneration \[AMD\]) or diabetic macular edema (DME). Patients cannot have used EYLEA® HD in the past and the doctor must be planning to treat nAMD or DME with a new prescription of EYLEA® HD (aflibercept 8 mg).
NCT06450340
Investigators conducted a single-blind, randomized trial of Taijiquan exercise as compared with a control intervention consisting of wellness education and jogging for youngsters with visual impairments. Sessions lasted 60 minutes each and took place three times a week for 12 weeks for each of the study groups. The primary end point was a change in the Brockport Physical Fitness Test (BPFT) at the end of 12 weeks. Secondary end points included summary scores of the Medical Outcomes Study 36-Item Short-Form Health Survey (SF-36) and Pittsburgh Sleep Quality Index (PSQI)at the end of 12 weeks.
NCT06612190
The goal of this clinical trial is to learn if transcranial magnetic stimulation (TMS) can improve the visual outcomes in patients with visual impairment. The main question it aims to answer is: • Does TMS improve the visual outcome in patients who suffer from visual impairment? Researchers will compare TMS to the control group who will not receive effective TMS treatment) to see if TMS works to improve the visual outcomes of the patients. Participants will * Undergo TMS treatment or no effective TMS for consecutive 5 days. * Visit the clinic once every 2 weeks for checkups and tests.
NCT06364605
My Space aims to identify the ontogenesis of spatial representation through cross-sectional and longitudinal studies in infants, children, and adolescents with typical and atypical development (visual impairments). The results will serve for the design and development of a novel multisensory device for sensorimotor rehabilitation in blind children from the early stages of life.
NCT03192722
The effect of tinted filters and illumination on the visual performance of patients with low vision (i.e., individuals with reduced vision that is uncorrectable with glasses, surgery or treatments) has been a topic of research and discussion for many years, yet there is no current consensus or practice standard for the evaluation and recommendation of colored filters and/or illumination intensity. Anecdotally, there have been many subjective reports of improvement in visual function and comfort with the use of tinted lenses. Previous studies have attempted to elucidate the subjective improvements observed using vision tests, such as visual acuity and contrast sensitivity, and the findings have been inconsistent. Traditionally, filters and optimal illumination are prescribed clinically through a trial and error method, which involves trying various filters and lamps haphazardly to determine which if any are preferred by the patient. The investigators are proposing to evaluate whether the illumination and filters chosen in office by participants using a new assessment tool the LuxIQ/2 translate to overall patient comfort and improved speed, accuracy and print size while reading, and to evaluate whether participants have the same illumination and colored filter preference determined by the LuxIQ/2 in a clinical office setting and in their home environment. The investigators will evaluate whether participants prefer lighting determined by the new assessment tool the LuxIQ/2 in comparison to lighting determined by the OttLite Cobra in office.
NCT06334614
The broad goal of this clinical trial is to demonstrate whether a one-month rehabilitative training with our medical device, iReach, can promote the recovery of spatial and sensorimotor abilities and the cortical reorganization process in children with visual impairment between 3 and 36 months of age.
NCT05478200
Chronic NonSpecific Low Back Pain (CNSLBP) is a common musculoskeletal condition often resulting in physical inactivity and disability. CNSLBP is associated with a large number of social and health costs, being one of the most important health problems worldwide. Although Therapeutical Exercise (TE) has been shown to be effective in increasing physical activity tolerance, physical fitness, strength, self perceived quality of live, pain tolerance, and overall physical activity participation levels in persons with CNSLBP, pain-release-passive therapy modalities are significantly more commonly used in clinical settings at present. On the other hand, the use of tele-assistance platforms PTAs has been gaining importance in the treatment of CNSLBP patients, especially in the use of semi-directed TE programs. However, current PTAs are not accessible for the visually impaired, a group that is at greater risk of suffering from sedentary lifestyles, restricted mobility and musculoskeletal pain due to postural or gait changes. The main hypothesis of these study is that a semi-directed TE and health education programm, in people with and without visual impairment, achieves better results in movement capacity, functional recovery, strength and compared to passive analgesic treatment in patients with CNSLBP. In a second objective, we will assess the efficacy and usability of a new PTA accesible tool for the follow-up of patients with CNSLBP who are visually impaired.
NCT03505398
The objective of this pilot work is to determine the role of central and peripheral visions in explicit attention processes (saccade planning) in the case of visual impairment.