View clinical trials related to Blindness.
Filter by:The purpose of this study is to evaluate the safety and efficacy of GP-asPNA for in vivo treatment of severe antibiotic resistant bacterial keratitis.
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.
Onchocerciasis or river blindness is an infectious disease caused by a parasitic worm. It spreads through the bite of an infected blackfly. Common symptoms include severe itching, skin problems, and eye problems including permanent blindness. Soil-transmitted helminthiasis is an infection caused by various parasitic worms, such as whipworm, hookworm, and roundworm in the intestines. The infection spreads through eggs found in the feces of infected people. This contaminates the soil in areas with poor sanitation. Common symptoms include stomach pain, loose stools, loss of blood and proteins, delayed development in children, and reduced work performance in adults. Researchers are looking for better ways to treat onchocerciasis and soil-transmitted helminthiasis. Emodepside is being tested for the treatment of onchocerciasis and soil-transmitted helminthiasis in both men and women. It works by activating a protein called 'SLO-1', which causes paralysis and death of the parasitic worms. The main purpose of this study is to find out if there is a difference in how emodepside gets absorbed in the blood when given as a new tablet compared to the existing tablet, as a single dose. Researchers also want to find the effect of food on the absorption of the new emodepside tablet. The amount of emodepside in participants' blood will be measured at various time points. These will be used to calculate and compare the following measurements after a single dose of the new and existing tablet of emodepside without food. The amount of emodepside in participants' blood will be measured at various time points. These will be used to calculate the Cmax and AUC after a single dose of the new tablet of emodepside with and without food. The number of participants who experience medical problems during this study will be documented. During this study, participants will receive 2 different types of emodepside tablets. These include the newly developed tablet and an existing tablet that has already been used in other clinical studies. At the start of the study, the researchers will ask participants about their medical and surgical history. They will also perform a health check-up for all participants, and pregnancy tests for women. During the study, participants will have blood and urine samples taken to check for any medical problems and to measure the amount of emodepside in the blood. The study doctors will confirm that the participants can take part in the study. This may take up to 21 days. This study has 3 or 4 periods and contains up to 2 in-house periods of 16 days each. On Day 1 of each period, participants will receive the treatments, but the order of the treatment will be different. • Periods 1 and 2: Each participant will receive a single oral dose of the new or the existing emodepside tablet without food. After Period 2, an initial analysis will be performed. This analysis will help decide the doses for the next periods. - Period 3: Participants will receive a selected dose of the new emodepside tablet either with or without food. - Period 4 (optional): If needed, participants may receive a selected dose of the new emodepside tablet either with or without food. The decisions to conduct Period 4 will depend on the results of the initial analysis. Participants will have a total of 6 additional weekly visits to the study site for sample collection after the last period (either Period 3 or 4). Participants will attend a follow-up visit to the study site 49 days after taking their last dose for a health check-up. This study will include participants who are healthy and will gain no benefit from taking emodepside. However, the results of the study will provide useful information to support the further development of the new emodepside tablet. The results will also provide information on the emodepside doses to be used in patients who need treatment with emodepside. Participants will be closely monitored by the study doctors for any medical problems.
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.
The purpose of this study is to investigate how visual orientation discrimination and metacognition (i.e., perceptual confidence) are affected by occipital stroke that causes hemianopia and quadrantanopia in adults. This research will provide insight as to how the residual visual system, which not directly damaged by the occipital stroke, processes orientation (assayed in terms of orientation discrimination) and metacognition (by measuring perceptual confidence for orientation discrimination). These measures will be used to refine computational models that attempt to explain how the brain copes with loss of primary visual cortex (V1) as a result of stroke. This knowledge is essential to devise more effective visual rehabilitation therapies for patients suffering from occipital strokes.
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.
Purpose of this study was to assess the relationship between the visual impairment degree and the level of children's fundamental motor skills, balance and bilateral coordination.
The aim of this study is to evaluate sleep of patients with septo-optic dysplasia compared to patients with an isolated disorder of peripheral visual system and patients with corpus callosum agenesis since both visus defict and agenesis of corpus callosum might be present SOD but associated to other features / structural and functional anomalies. Included patients and their caregivers will be asked to compile standardize sleep questionnaires and a sleep screening through an interview will be scheduled. Patients will be asked to wear an actigraph on their non-dominant hand wrist for 7 days.
The objective of this project is to create richer tactile aids by using materials chemistry to create tactile sensations in tactile aids, as an alternative to traditional physical bumps, lines, or textures. These materials are commonly used in household products, but have not yet been used to enrich tactile aids. Successful outcomes are primarily the accuracy with which low vision or blind subjects identify objects made from tactile coatings versus traditional tactile aids. Other outcomes include time to completion of the task, or the number of distinctive categories that participants can identify.
This project is intended to collect data using standard clinical tests and psychophysics to quantify the effect of visual cortical damage on the structure of the residual visual system, visual perception, spatial awareness, and brain function. The investigators will also assess the effect of intensive visual retraining on the residual visual system, processing of visual information and the use of such information in real-world situations following damage. This research is intended to improve our understanding of the consequences of permanent visual system damage in humans, of methods that can be used to reverse visual loss, and of brain mechanisms by which visual recovery is achieved.