View clinical trials related to Vision, Low.
Filter by:Visual impairment is use to describe any kind of vision loss, whether it's someone who cannot see at all or someone who has partial vision loss. visual impairment is classified on the bases of visual acuity like mild, moderate, severe, profound, near total visual impairment, no light perception (NLP). Multisensory integration refers to a broad class of computations involving multiple sensory modalities in which information is integrated to produce an enhanced (or degraded) response.A Randomized control trail will be conducted at rising sun institute for disable children. Total sample size will be of 40 participants. After meeting the inclusion and exclusion criteria participants will be divided into two groups .Group A Control group will receive conventional therapy program. Place toys/objects inside and encourage the student to reach in and pull them out as well as put them back in. Give the student objects that can be put together and pulled apart. Group B will be treated with standard activity based therapy In which place different( nuts, screws, bullets, coins, paper clips, coloring ,scissor cutting with different shapes, Simulated feeding (by collecting beans with a spoon and transferring them into a container),transfer light and heavy weight objects into empty box. Nine whole peg tests are used to measure fine dexterity in visual impaired children. Jebsen Taylor hand function test for quantify motor hand function test. Total time for treatment per session will 45 minutes and duration of treatment will be 12 weeks, four days a week.box and block test used to improve manual hand dexterity. Assessment will be taken pre treatment, mid treatment at 4th week and 8th week and post treatment after 12th week. Data will be analyzed by SPSS
Development of the visual system immediately starts after birth via visual stimuli and interactions with the environment. The World Health Organization (WHO) has categorized visual impairments with respect to the best-corrected visual acuity as follows: blindness (Snellen visual acuity of 3/30), severe visual impairment (Snellen visual acuity between 6/60 and 3/30), moderate visual impairment (Snellen visual acuity between 6/18 and 6/60), and mild or no visual impairment (Snellen visual acuity of 6/18). The proper function of hands, particularly in delicate activities, depends on the interaction between the various regions of the brain, particularly, the sensory and motor cortex. Sensory stimulation can be used in such children to improve their manual dexterity and therapeutic interventions can be applied to gain hand strength. Developing skillful hands is a necessity in blind children as it often compensates for their missing vision. This study will focus on effectiveness of hand grip strength and manual ability with sensory stimulation in children with moderate to severe visual impairment. Theraputty hand exercises and sensory stimulation techniques will be used.
The purpose is to investigate whether the Blue Cut for Night filter is better at reducing migraine compared to the FL-41 filter or a filter blocking light below 500 nm. A control group will use clear lenses without filter. This is a controlled, randomized and double-blind trial.
One goal of this research is to conduct a non-inferiority trial of telerehabilitation versus in-office care to provide follow-up training to individuals with low vision to enhance their quality of life by using magnification devices and/or visual assistive mobile apps for important daily activities, such as reading and/or other valued tasks. This is a high priority given the increasing prevalence of low vision, paucity of low vision rehabilitation providers, and barriers related to access to care, such as transportation and geography, which can be essentially eliminated with telerehabilitation. Another goal of this project is to determine whether significant changes in environmental data collected by Bluetooth low energy beacon sensors can be used as a solution to monitor and indicate when low vision patients' have abandoned the use of their magnification devices, which has the potential to substantially enhance patient management by providing timely low vision rehabilitation services.
Glaucoma, age-related macular degeneration (AMD), retinitis pigmentosa, RP, diabetic retinopathy (DR) are the most common blinding eye diseases in the world. Vision and visual field are often severely impaired, quality of life is reduced, and personal and family burdens are heavy. This kind of low vision people, can use visual AIDS and other instruments for visual rehabilitation training, maximize the function of residual vision, improve the quality of life. Beyes, HOLA, Acesight and OXSIGHT are among the latest eyeglasses devices that are expected to improve the quality of life for people with low vision. This research group intends to recruit advanced patients with primary glaucoma, AMD, RP, DR and other common blinding eye diseases who visited Zhongshan Ophthalmology Center of Sun Yat-sen University from June 2021 to December 2022 to study the changes of visual function and quality of life after wearing this new type of head-worn visual aids, and analyze relevant factors combined with clinical data. To evaluate the effect and influencing factors of the new head-mounted visual AIDS on patients, and provide theoretical basis for subsequent clinical research.
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.
The goal of this study is to learn about eye gaze technology's use as an assessment and intervention of visual skills and the impact on occupational performance in children with cortical/cerebral visual impairment. The main questions the study aims to answer are: - Does the use of eye gaze technology with graded visual activities improve visual abilities: - Does an improvement in visual abilities improve occupational performance? - What are the factors that correlate with improved visual abilities? Participants will complete the Pre-test with Canadian Occupational Performance Measurement, Cortical Visual Impairment Range, Sensory Profile and Sensory Processing Checklist for Children with Visual Impairment. Then will participate in eye gaze technology activities using eye gaze software with graded visual games for 20 minutes per day for 4 weeks. Observations of positioning, head/eye position, sensory processing, and types of eye gaze activities used during the session. Pre test, daily and post test percentage scores on the eye gaze activities will be recorded. Then the child will complete post testing with the Canadian Occupational Performance Measurement and Cortical Visual Impairment Range.
Falls are one of the most serious public health concerns for seniors, with significant medical and economic consequences. This concern is even higher in patients with peripheral field loss due to glaucoma because of the patients' compromised visual input. The investigators' project proposes an innovative, entertaining, easily accessible and enjoyable intervention for improving mobility and postural control function in glaucoma patients with peripheral vision loss, who are more prone to falls and suffer from fear of falling. The new intervention examined in this project can be implemented in current vision and balance rehabilitation programs, and may benefit patients with different types of visual impairment to minimize their risk of falls and improve their quality of life.
A broad definition of visual impairment includes a wide continuum of visual function loss. Aspects of visual function include visual acuity, which is the capacity to resolve detail, and accommodation (capacity to concentrate), field of vision (the area that may be seen), colour perception, and light sensitivity. A child with cerebral blindness can nevertheless be able to perceive motion. There are numerous sources of prevalence information, each of which has drawbacks. One of the fundamental pillars of the major worldwide prevention of blindness project, VISION 2020 the Right to Sight, is the reduction of visual impairment and blindness in children in resource-poor nations. Refraction and poor vision services aid visually impaired children, especially those with genetic or congenital ocular defects and enable vision improvement.
The aim of the project is to investigate the effectiveness of a home training managed through audio-guides in comparison to a classic supervised training on the physical and psychological parameters of patients with severe low vision. In this study the feasibility and effectiveness of a self-managed physical activity protocol with audio guides on physical performance (strength, mobility and aerobic capacity) will be assessed and compared to the same protocol supervised in a fitness environment. Secondary aims are the effects of the two types of administration of the protocol on quality of life, autonomy and psychological impact on the caregiver.