There were even 3-D TVs that require no glasses at all.

VOA: special.2010.01.26

(Speaking) But a study at the University of California Berkeley found that 3-D movies can cause eye strain.

VOA: standard.2010.02.21

Martin Banks, a professor of optometry at Berkeley, says 3-D doesn't allow our eyes to follow the rules because we're focusing on things both far and near at the same time.

VOA: standard.2010.02.21

Kyl was speaking in support of an amendment to the $91.3-billion Senate version of the 2009 Iraq-Afghanistan war supplemental bill, aimed at preventing U.S.government funds from going to companies involved in selling refined petroleum products to Iran.

VOA: standard.2009.05.20