Twin bore ophthalmologic tubing includes first and second tubes. The secondtube has portions of differing hardnesswith one of the portions being at an end of that tube. The second tube has aportion at its other end with about the same hardness.Portions of the first and the second tubes may have about the same hardness.In some embodiments, portions of the first andsecond tubes with the same hardness can correspond to each other along thetubing. One of the portions can have a hardness of 80to 90 shore A while the other portion can be 60 to 70 shore A. In someembodiments, portions with 60 to 70 shore A hardness canbe about six to twelve inches long.
