Other important vision tools include bifocals, the monocle, contact lenses, sunglasses and safety glasses.

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Also on hand was the monocle which was very much like something you'd see in a science fiction flick.

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When car show organizers suggested Roth spruce up the grubby clothes he habitually wore, he acquired a top hat, monocle and set of tails.

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Happily, three American college boys who find him at play in Monte Carlo help him to uncover the wild and woolly Yank beneath his monocle.

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At Monocle, we are what we do, not what we say.

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Described by one of his close friends as "fearlessly eccentric", Sir Patrick was notable for his habit of wearing a monocle on screen and his idiosyncratic style.

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Suffice it to say I did enjoy his presence but felt that, yes in the end he should have had a monocle to go along with his stuff English accent.

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Opening his laptop, he pulled up an illustration by Monocle magazine of the perfect city block and pointed out how similar it was to a typical Taipei one, with storefronts facing the street and residences and parks tucked inside.

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That should sound familiar to fans of Google Glass, but by using Epson's binocular displays, these smart glasses can convey depth in a way Mountain View's monocle cannot. (Not to mention that Glass doesn't even do AR apps... yet).

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"Just to give you an idea of how uneven the playing field is, I met Katumbi in Harare when I watched TP Mazembe play the Zimbabwean champions, " said Steve Bloomfield, foreign editor of Monocle magazine and author of the book Africa United: How Football Explains Africa.

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