Vision is unquestionably important. Some people are fortunate, and live a long life with perfect vision right up until the end. Most people, though, experience one of more impairments of vision sooner or later. Describe a visual problem you have experienced, or someone close to you. If you are one of the fortunate ones with perfect vision, select one of the impairments of vision discussed in the Week 3 reading "The Visual System." In your posting give details of onset, treatment, and current functioning.