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Published byPriscilla Haynes Modified over 9 years ago
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Comments on vision domain 10th Washington Group meeting Luxembourg 3-5 November 2010 Andres Montes ESCAP Statistics Division
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Overall assessment The vision questions perform relatively well providing clear and conclusive findings. This suggests that the current set of extended questions should be adopted with some minor changes to increase the accuracy of the measures.
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Main issues Confusion with ‘glasses’ clause in the first question. ‘across the room’ – no exact notion about the size of room. ‘picture on a coin’ – what’s the distance for viewing a coin?
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Proposed set 1.Do you wear glasses for seeing? a) No. b) Yes, to see far away. c) Yes, to see up close. d) Other reason. 2.Do you have difficulty seeing [even when wearing glasses]? 3.Do you have difficulty clearly seeing someone’s face across a room [even when wearing glasses]? Give examples? 4.Do you have difficulty clearly seeing the picture on a coin at arms length [even when wearing glasses]? Give examples?
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