Table 5. Changes in BiS Score of Patients With Infantile- or Childhood-Onset Esotropia vs Other Strabismus Subtypes After Strabismus Surgery.
| Variable | Improvement in BiS by ≥5 letters | Indeterminate (Improvement or Worsening <5 Letters) | Worsening of BiS by ≥5 Letters | P Value for Fisher Exact Test | |||
|---|---|---|---|---|---|---|---|
| No. (% of Total) | 95% CI | No. (% of Total) | 95% CI | No. (% of Total) | 95% CI | ||
| ETDRS | .05 | ||||||
| Infantile- or childhood-onset esotropia | 2 (10) | (3-30) | 13 (65) | (41-81) | 5 (25) | (11-49) | |
| All other subtypes | 17 (24) | (15-35) | 51(73) | (61-82) | 2 (3) | (0.1-10) | |
| 2.5% LCA | .24 | ||||||
| Infantile- or childhood-onset esotropia | 2 (10) | (3-31) | 14 (70) | (46-85) | 4 (21) | (9-43) | |
| All other subtypes | 22 (31) | (22-43) | 39 (56) | (43-67) | 9 (13) | (7-24) | |
| 1.25% LCA | .15 | ||||||
| Infantile- or childhood-onset esotropia | 4 (20) | (9-43) | 15 (75) | (51-88) | 1 (5) | (1-24) | |
| All other subtypes | 24 (34) | (24-46) | 34 (49) | (36-60) | 12 (17) | (10-29) | |
| ETDRS | .11 | ||||||
| Intermittent exotropia | 5 (23) | (11-45) | 17 (77) | (55-89) | 0 | ||
| All other subtypes | 14 (20) | (12-31) | 47(69) | (57-79) | 7 (11) | (5-21) | |
| 2.5% LCA | .32 | ||||||
| Intermittent exotropia | 8 (36) | (21-59) | 10 (45) | (24-63) | 4 (18) | (8-40) | |
| All other subtypes | 16 (23) | (15-34) | 43 (64) | (51-74) | 9 (13) | (7-24) | |
| 1.25% LCA | .007 | ||||||
| Intermittent exotropia | 11 (50) | (32-72) | 6 (27) | (11-45) | 5 (23) | (10-44 | |
| All other subtypes | 17 (24) | (16-36) | 43 (65) | (51-74) | 8 (12) | (6-22) | |
Abbreviations: BiS, binocular summation; ETDRS, Early Treatment Diabetic Retinopathy Study; LCA, low-contrast acuity.