Acquired night blindness

This trial tests whether adding a twice-daily nutritional drink to standard care helps adults aged 55 and older regain weight and muscle strength after being hospitalized for an acute illness. Participants are at risk of malnutrition and have low grip strength. Half receive the d…

This study tests a caregiver-led digital program called VIPPSTAR designed to improve vision and brain development in infants at risk of or with visual impairment. The program provides personalized activities integrated into daily routines, supported by remote coaching. Researcher…

This study tests whether giving caregivers a weekly bulk container (7-day supply) versus daily single-use sachets (1-day supply) of a nutrient supplement improves how much children actually consume. About 500 caregivers of children aged 6-24 months in northern Ghana will try both…

This study tests a 12-week adapted physical activity program for children and adolescents aged 10-17 with visual impairment. The program includes supervised school-based exercise sessions and home-based activities, along with peer-group meetings to promote social inclusion. Resea…

This study explores how visual impairment affects movement and daily activities, and tests a wearable system called VIS4ION that provides audio and touch cues to help users navigate. Researchers will enroll 150 adults with visual impairment and healthy controls to see if the devi…

This study tests whether Meta AI glasses, connected to the Be My Eyes network, can help people with permanent vision loss walk and move around more easily. The glasses describe scenes and objects in real time. Fifty participants will use the glasses and report changes in their qu…

This study will test a new, noninvasive camera called XyCAM CRE that measures blood flow in the back of the eye. Researchers will compare its images with standard eye tests in 350 adults with retinal disorders. The goal is to see if this camera can provide extra information to he…

This study in Assiut, Egypt, will check 116 children aged 2-15 for intestinal parasites to see if these infections are more common in malnourished kids compared to healthy ones. The goal is to understand how parasites like Giardia and hookworms might cause or worsen malnutrition …

This study at Stanford University will test how the brain responds when visual information is turned into patterns of sound or touch. Two hundred blind and sighted participants will use special devices (BrainPort and AI Sight) for 5 weeks. Researchers will use brain scans and per…