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Table 1 Questions added to the Catquest 9-SF questionnaire with options provided

From: Short term visual outcomes of a new trifocal intraocular lens

1. Do you use spectacle correction…

 For near distance (for reading or sewing)?

  Never

  Sometimes

  Always

 For intermediate distance (using computers or cooking)?

  Never

  Sometimes

  Always

 For far distances (driving, cinema)?

  Never

  Sometimes

  Always

2. Do you see halos with low illumination (during the night or if there is little light)?

 Never

 Occasionally

 Often

 Always

3. Do light sources provoke glare with low illumination (such as driving at night)?

 Never

 Occasionally

 Often

 Always

4. Do you have difficulties when driving at night?

 Never

 Occasionally

 Often

 Always

5. Would you undergo the same surgery again?

 Yes

 No