Following the 2014 Ebola virus outbreak in Liberia, NEI investigators joined other researchers and investigators to be a part of the PREVAIL III (Partnership for Research on Ebola Virus in Liberia) study. Ebola survivors reported a variety of complaints such as headaches, joint and muscle pain, eye fatigue and blurry vision. Some reports indicate that survivors have uveitis. Uveitis is a group of inflammatory autoimmune eye disease that produces swelling and destroys eye tissue. This can reduce vision or lead to vision loss. It is unknown to researchers what the physical long term effects of survivors, including eye health.