W5: Rare but devastating side effect of laser eye surgery

Laser eye surgery, or Lasik, offers enhanced vision in minutes, but do Canadians who choose to have the surgery fully understand the risks? W5's Avis Favaro investigates what happens in the rare cases when things go wrong.
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W5 is Canada’s most-watched investigative, current affairs and documentary program. Tackling major stories and investigations W5 is in its 51st season.