Table 3. Comparison of final visual acuities assessed with the OTS categorization with Kuhn et al.'s study7 .
| Sum of raw points | OTS category | No. of eyes,a in this study/in OTS study | Final visual acuity (%), in this study/in OTS study | |||||
|---|---|---|---|---|---|---|---|---|
| NLP | LP to HM | CF to 15/200 | 20/50 to 20/200 | < 20/40, ≥ 0.5 | P valueb | |||
| 0–44 | 1 | 8/215 | 88/74 (n = 7) | 0/15 (n = 0) | 13/7 (n = 1) | 0/3 (n = 0) | 0/1 (n = 0) | 0.683 |
| (P < 0.001) | (P = 0.338) | |||||||
| 46–65 | 2 | 6/374 | 83/27 (n = 5) | 0/26 (n = 0) | 0/18 (n = 0) | 16/15 (n = 1) | 0/15 (n = 0) | 0.007 |
| (P < 0.001) | (P = 0.647) | |||||||
| 66–80 | 3 | 7/808 | 0/2 (n = 0) | 0/11 (n = 0) | 43/15 (n = 3) | 14/31 (n = 1) | 43/41 (n = 3) | 0.076 |
| (P = 0.002) | (P = 0.703) | (P = 0.197) | ||||||
| 81–90 | 4 | 22/378 | 5/1 (n = 1) | 5/2 (n = 1) | 0/3 (n = 0) | 36/22 (n = 8) | 55/73 (n = 12) | 0.122 |
| (P = 0.175) | (P = 0.387) | (P = 0.003) | (P = 0.190) | |||||
| 92–100 | 5 | 59/376 | 0/0 (n = 0) | 2/0 (n = 1) | 2/1 (n = 1) | 10/5 (n = 6) | 86/94 (n = 51) | 0.053 |
| (P = 0.618) | (P = 0.104) | (P = 0.06) | (P < 0.001) | |||||
Percentage in each column may not equal 100% due to rounding.
OTS = Ocular Trauma Score, NLP = no light perception, LP = light perception, HM = hand motion, CF = count fingers.
aOnly 37.1% of patients could be categorized by OTS score due to some limitations including lack of medical records, drunken or sedated state, severe periocular trauma; bP values were calculated using χ2 test and Fisher's exact test as appropriate. In each OTS category, distribution of final visual acuities was compared to the OTS study.