create 3 Running Totals, each with an evaluate formula using a instring or like condition.
example:
RT name = VisionCount
Field to Summarize = PK as a counter or the Question
Type of summary = Count (distinct count if duplicates need to be handled and you can use the appropriate PK)
Evaluate= use a formula
table.answer like '*vision*'
reset = never (unless you need group values)
Field to evaluate = PK or the question field