"It was a trivial incident - I told her to try and sort it out for herself first of all, and she did, " he says.

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But first I decided to try their glasses out for myself in a sort of test to see if they were effective for me.

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And I talked about the, you know, the experience of sort of going out in the woods and at first being afraid to leave sight of the buildings and people and later on it became being afraid to come back to the sight of buildings and people.

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