Optical Coherence Tomography (OCT) is a scan that measures the thickness of the lining at the back of the eye - the retina.

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The only time we noticed a bit of pause was when we tapped the touch-sensitive buttons lining the bottom of the 4-inch screen (these include menu, home and back, in that order).

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The back-to-school discussion focused on helping families save and pay for college amid rising tuition costs and flat-lining middle class incomes.

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"The level of housing transaction is well under half the level it was back in 2007 and 2008, so, really we have seen a flat-lining period, " McGrath said.

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