When using blitzindex should are the reads the number of times the index was used to read or is that the op stats?
The "Usage Stats" column is from sys.dm_db_index_usage_stats.

The "Operational Stats" column is from sys.dm_db_index_operational_stats.

I won't rehash the Books Online documentation for each DMV here, but the short story is that they both measure how many times the index has been used - they just measure it in different ways.