Table 2.

Patient questionnaire

Parameter
1 Do you experience any night vision disturbance currently? If YES, which eye? □ No □ Yes (operated eye, unoperated eye, or both eyes)
2 During the last week, have you experienced interocular visual differences at night? If YES, which eye is better in term of night vision? □ No □Yes (operated eye or unoperated eye)
3 During the last week, have you experienced glare at night? If so, which eye? And rate it as mild, moderate, or severe. □ No □ Yes (operated eye, unoperated eye, or both eyes) □ Mild □ Moderate □ Severe
4 During the last week, have you experienced halos (rings around lights) at night? If so, which eye? And rate it as mild, moderate, or severe. □ No □ Yes (operated eye, unoperated eye, or both eyes) □ Mild □ Moderate □ Severe
5 During the last week, have you experienced starburst around lights at night? If so, which eye? And rate it as mild, moderate, or severe. □ No □ Yes (operated eye, unoperated eye, or both eyes) □ Mild □ Moderate □ Severe
6 During the last week, have you experienced any visual distortion as you normally function at night? If so, which eye? And rate it as mild, moderate, or severe. □ No □ Yes (operated eye, unoperated eye, or both eyes) □ Mild □ Moderate □ Severe
7 The overall satisfaction score (on a scale of 1–10, 1 = low satisfaction and 10 = high) with your refractive surgery outcomes is ___.

Mild: symptoms noted to affect light sources, but functions were not interfered; Moderate: symptoms noted and usual activity were affected, especially when driving or looking at light sources; Severe: certain activities, such as driving or looking at light sources, were restrained by symptoms