Table 2. Adjusted* Risk Factors Affecting Visual Acuity at the Preoperative Visit and Affecting the Preoperative to Postoperative Visit Change in Visual Acuity in the Multicenter Uveitis Steroid Treatment Trial.
| Characteristics | Preoperative Visual Acuity | ||
|---|---|---|---|
|
| |||
| Estimated Mean Difference at Preoperative Visit, Letters (95% Confidence Interval) | P Value | ||
| Treatment | |||
| Systemic | Reference | ||
| Implant | 5.5 | −3.3 to 14.4 | 0.22 |
| Race | |||
| Nonblack | Reference | ||
| Black | −12.0 | −22.1 to −1.8 | 0.021 |
| Time from uveitis onset at preoperative visit (10 yrs), centered at 2 yrs | −4.7 | −9.0 to −0.4 | 0.033 |
| Preoperative intraocular pressure (mmHg) | |||
| ≤7 | −7.6 | −14.0 to −1.0 | 0.022 |
| 8–23 | Reference | ||
| 24–29 | −5.6 | −16.4 to 5.2 | 0.31 |
| ≤30 | 9.1 | −1.6 to 19.8 | 0.096 |
|
| |||
| Change from Preoperative to Postoperative Visual Acuity | |||
|
| |||
| Mean Difference from Preoperative to Postoperative Visits, Letters (95% Confidence Interval) | P Value | ||
|
| |||
| Eyes with gradable preoperative vitreous haze† | |||
| Preoperative visit | Reference | ||
| 3 mos | 13.4 | 9.7–17.1 | <0.001 |
| 6 mos | 15.9 | 12.6–19.2 | <0.001 |
| 9 mos | 15.4 | 11.7–19.0 | <0.001 |
| Eyes with ungradable preoperative vitreous haze | |||
| Preoperative visit | Reference | ||
| 3 mos | 55.4 | 42.9–67.9 | <0.001 |
| 6 mos | 58.0 | 45.4–70.6 | <0.001 |
| 9 mos | 57.4 | 44.7–70.1 | <0.001 |
*
Adjusted for all factors simultaneously.
†
The association of preoperative vitreous haze with preoperative visual acuity was significantly different from its association with postoperative visual acuity (P < 0.001).