Story of Wudasie Mamo Daba

Wudasie Mamo Daba lost her vision 25 years ago with an unknown cause. Her two sons are also blind. Loss of vision is considered sudden if it develops within a few minutes to a couple of days. It may affect one or both eyes and all or part of a field of vision. Loss of only a small part of the field of vision (for example, as a result of a small retinal detachment) may seem like blurred vision.