Table 2 NEI VFQ-25 Item Codes and Summary Statements and Additional Items Used in the Construction of the NEI VFQ-28- R
Item | Statement Summary | NEI VFQ-25 (Reliability: 0.93) | NEI VFQ-28-R (Reliability: 0.94) | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Dr | Mr | Mt | Df | Dp | Dr | Mr | Mt | Df | Dp | ||
VF2 | Eyesight quality | ✗ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
VF3 | Time spent worrying about eyesight | ✗ | ✗ | ✗ | ✗ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
VF4 | Amount of pain in/around eyes | ✗ | ✗ | ✗ | ✓ | p1 | ✓ | ✓ | ✓ | ✓ | ✓ |
VF5 | Difficulty reading newspaper print size | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | p1 |
VF6 | Difficulty seeing well up close | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
VF7 | Difficulty finding objects | ✓ | ✗ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
VF8 | Difficulty reading street signs | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
VF9 | Difficulty going downstairs or curbs in dim light | ✓ | ✓ | ✓ | ✗ | ✓ | ✓ | ~ | ✓ | ~ | ✓ |
VF10 | Difficulty with peripheral vision | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ~ | ✓ |
VF11 | Difficulty seeing other people reactions | ✓ | ✗ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
VF12 | Difficulty matching clothes | ✗ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
VF13 | Difficulty visiting others | ✗ | ✗ | ✓ | ✓ | ✓ | ✓ | ~ | ✓ | ✓ | ✓ |
VF14 | Difficulty going out | ✗ | ✗ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
VF15C | Difficulty driving during day | ✗ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
VF16 | Difficulty driving at night | ✗ | ✓ | ✓ | ✗ | ✓ | ✓ | ✓ | ✓ | ~ | p2 |
VF16A | Difficulty driving in difficult conditions | ✗ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | p2 |
VF17 | Limited in time to accomplish activities | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
VF18 | Limited in time at work due to eyesight | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
VF19 | Limited in time due to pain or discomfort around eyes | ✓ | ✓ | ✗ | ✓ | p1 | ✓ | ✓ | ✓ | ✓ | ✓ |
VF20 | Time staying at home due to eyesight | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
VF21 | Time frustrated due to eyesight | ✓ | ✗ | ✗ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
VF22 | Amount of control lost due to eyesight | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
VF23 | Reliance on what other people say due to eyesight | ✓ | ✗ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | p3 |
VF24 | Amount of help from others due to eyesight | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ~ | ✓ | ✓ | p3 |
VF25 | Embarrassed doing things because of eyesight | ✗ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
VFA3 | Difficulty reading small print (e.g. medicine bottle) | N/A | N/A | N/A | N/A | N/A | ✓ | ✓ | ✓ | ✓ | p1 |
VFA4 | Difficulty reading mail/bills accurately | N/A | N/A | N/A | N/A | N/A | ✓ | ✓ | ✓ | ✓ | ✓ |
VFA5 | Difficulty shaving or putting on makeup | N/A | N/A | N/A | N/A | N/A | ✓ | ✓ | ✓ | ~ | ✓ |
VFA6 | Difficulty recognizing faces due to eyesight | N/A | N/A | N/A | N/A | N/A | ✓ | ✓ | ✓ | ✓ | ✓ |
VFA7 | Difficulty taking part in outdoor activities | N/A | N/A | N/A | N/A | N/A | ✓ | ✓ | ✓ | ✓ | ✓ |
VFA8 | Difficulty seeing television | N/A | N/A | N/A | N/A | N/A | ✓ | ✓ | ✓ | ✓ | ✓ |