Wearing ties too tight can damage your eyesight

Advocates
of dressing down in the office have been handed more ammunition after new
research reveals that wearing a tie can damage your eyesight.

A
study in the British Journal of Ophthalmology finds that wearing a tie
increases the danger of the serious eye condition glaucoma, which can severely
affect vision.

Tightness
around the neck restricts the jugular vein, which raises blood pressure,
particularly in the eyeball. Glaucoma occurs when liquid excreted  from around the lens and the iris cannot drain
properly, and the optic nerve can be damaged.

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The
study said: "A tight necktie can be considered a risk factor [for] men who
prefer to wear tight neckties, men with thick necks and white-collar
professionals."

Researchers
in New York have found that 60 per cent of those studied with glaucoma, and 70
per cent of those with healthy eyes suffered an increase in internal eye
pressure after wearing a tie for three minutes.