There has not been much visible impact on buying habits lately.

And it has already had a visible impact on the country's political atmosphere.

The most visible impact promises to be at eye level and above.

It's the first of these that will have the most visible end-user impact.

That is not entirely in the hands of Republican leaders, whose efforts at generating a national campaign have so far had little visible impact.

The changes in American reading habits are having a visible impact on the newspaper industry as well.

The tubes are below the beach surface, with no visible impact.

Human activities on and around the rock have had a visible impact on its profile.

Success has had little visible impact on the two partners.

It is here in the area of overseas aid that financial management reform has made a very positive and visible impact.