Table 5.
Quality of Life in Patients Undergoing Surgery in Different Seasons and Implanted with a Clear or Yellow Intra-Ocular Lens
| Seasona in which surgery was performed | |||||
|---|---|---|---|---|---|
| Spring | Summer | Fall | Winter | p valueb | |
| Clear IOL | |||||
| No. patients | 18 | 13 | 15 | 25 | |
| Male/female | 9/9 | 8/5 | 3/12 | 10/15 | |
| Age (years) | 71.4±9.9 | 74.1±7.0 | 75.9±9.0 | 74.9±8.8 | NS |
| VFQ-25 score | |||||
| Pre-operative | 69.7±11.8 | 67.2±17.7 | 66.4±14.7 | 63.9±20.6 | NS |
| Post-operativec | 82.1±9.8 | 75.5±17.3 | 77.6±10.7 | 82.2±12.3 | NS |
| Changed | 12.4 | 8.3 | 11.2 | 18.3 | |
| PSQI score | |||||
| Pre-operative | 5.2±3.2 | 4.3±1.7 | 6.6±3.6 | 6.2±4.0 | NS |
| Post-operativec | 4.3±3.1 | 4.2±2.5 | 7.5±3.5 | 5.5±3.2 | NS |
| Changed | −0.9 | −0.1 | 0.9 | −0.7 | |
| Yellow IOL | |||||
| No. patients | 9 | 56 | 45 | 25 | |
| Male/demale | 4/5 | 26/30 | 16/29 | 6/19 | |
| Age (years) | 74.4±9.1 | 74.4±8.6 | 75.1±6.8 | 73.9±7.1 | NS |
| VFQ-25 score | |||||
| Pre-operative | 53.7±19.3 | 63.9±17.5 | 65.6±16.4 | 63.2±14.6 | NS |
| Post-operativec | 80.3±15.1 | 78.3±12.7 | 82.7±9.6 | 79.3±13.3 | NS |
| Changed | 26.6 | 14.4 | 17.1 | 16.1 | |
| PSQI score | |||||
| Pre-operative | 6.9±5.0 | 4.9±3.3 | 5.3±4.1 | 5.5±3.4 | NS |
| Post-operativec | 5.4±5.4 | 5.1±3.0 | 5.3±4.0 | 5.1±4.1 | NS |
| Changed | −1.5 | 0.2 | 0.0 | −0.4 | |
Unless indicated otherwise, data are given as the mean±standard deviation (SD).
a
Spring, March–May; Summer, June–August; Fall, September–November; Winter, December–February.
b
Kruskal–Wallis test.
c
Note: Post-operative values are values determined 2 months after surgery.
d
The change in scores was calculated by subtracting pre-operative values from post-operative values.
IOL, intra-ocular lens; NS, not significant; VFQ-25, Visual Function Questionnaire 25; PSQI, Pittsburgh Sleep Quality Index.