Table 7.
Relationship between organism virulence type and final VA
| Virulence type | Final VA, n (%) | ||||||
|---|---|---|---|---|---|---|---|
| EE | NLP | LP | HM | CF–20/200 | 20/200 or better | Total | |
| Nonvirulent | 0 | 3 (8.6) | 7 (20.0) | 5 (14.3) | 7 (20.0) | 13 (37.1) | 35 (29.2) |
| Virulent | 7 (8.2) | 24 (28.2) | 13 (15.3) | 16 (18.8) | 9 (10.6) | 16 (18.8) | 85 (70.8) |
| χ2 | 3.061 | 5.497 | 0.395 | 0.354 | 1.900 | 4.540 | – |
| P | 0.080 | 0.019* | 0.530 | 0.552 | 0.168 | 0.033* | – |
The difference between groups was significant at the level *P<0.05 at baseline tested by Chi-square test. –: No data; VA: Visual acuity; EE: Enucleated or eviscerated; NLP: No light perception; LP: Light perception; HM: Hand motions; CF: Counting fingers.