Table 2. Characteristics of children with vertigo and vergence abnormalities.
| Children(years) | NPC(cm) | Heterophoria(pD) | Divergence(pD) | Convergence(pD) | Vertigo | Headache | |||
| Far | Near | Far | Near | Far | Near | ||||
| V1 (10) | 4 | −1 | −4 | 2 | 8 | 12 | 40 | rotatory | x |
| V2 (11) | 5 | −2 | −4 | 2 | 10 | 6 | 40 | rotatory | |
| V3 (11) | 4 | 2 | 14 | 4 | 6 | 20 | 30 | unsteadiness | x |
| V4 (11) | 5 | 4 | 2 | 8 | 12 | 25 | 35 | unsteadiness | |
| V5 (11) | 5 | 0 | 2 | 2 | 8 | 20 | 40 | unsteadiness | x |
| V6 (11) | 5 | −2 | −6 | 2 | 6 | 12 | 40 | rotatory | x |
| V7 (11) | 5 | −1 | 4 | 8 | 8 | 16 | 30 | rotatory | x |
| V8 (12) | 4 | 0 | −4 | 6 | 10 | 20 | 30 | rotatory | |
| V9 (12) | 5 | 0 | 2 | 4 | 8 | 25 | 40 | rotatory | |
| V10 (12) | 5 | 0 | 0 | 4 | 6 | 12 | 40 | unsteadiness | |
| V11 (13) | 5 | 0 | 0 | 6 | 12 | 25 | 35 | rotatory | |
| V12 (14) | 5 | 0 | 0 | 8 | 15 | 20 | 30 | rotatory | x |
| V13 (15) | 5 | 0 | 2 | 1 | 6 | 20 | 40 | rotatory | |
| V14 (10) | 4 | 0 | 0 | 2 | 10 | 15 | 20 | unsteadiness | x |
| V15 (10) | 7 | −2 | −4 | 2 | 12 | 4 | 25 | rotatory | x |
| V16 (11) | 5 | −2 | −4 | 2 | 4 | 14 | 30 | unsteadiness | x |
| V17 (11) | 5 | 0 | 6 | 4 | 8 | 10 | 35 | unsteadiness | x |
| V18 (11) | 3 | 2 | 2 | 8 | 8 | 15 | 20 | rotatory | x |
| V19 (11) | 5 | 0 | −2 | 2 | 6 | 14 | 25 | unsteadiness | x |
| V20 (12) | 15 | 0 | −14 | 4 | 18 | 16 | 25 | rotatory | |
| V21 (12) | 5 | 2 | 2 | 4 | 10 | 16 | 20 | rotatory | |
| V22 (13) | 7 | 0 | −4 | 2 | 16 | 18 | 30 | unsteadiness | x |
| V23 (13) | 5 | 0 | 6 | 6 | 14 | 15 | 20 | unsteadiness | x |
| V24 (14) | 3 | 0 | 3 | 6 | 12 | 15 | 25 | unsteadiness | x |
| V25 (14) | 7 | 0 | 0 | 8 | 12 | 12 | 30 | rotatory | |
| V26 (14) | 7 | 0 | −4 | 2 | 8 | 20 | 25 | rotatory | x |
| V27 (15) | 3 | 0 | 0 | 1 | 6 | 16 | 35 | rotatory | x |
| V28 (10) | 7 | −2 | −4 | 2 | 6 | 2 | 12 | unsteadiness | x |
| V29 (10) | 7 | −2 | −2 | 4 | 10 | 10 | 16 | rotatory | x |
| V30 (10) | 5 | 0 | −2 | 4 | 8 | 10 | 12 | rotatory | |
| V31 (11) | 10 | 0 | 0 | 1 | 10 | 12 | 16 | rotatory | |
| V32 (11) | 5 | 0 | 2 | 4 | 14 | 14 | 18 | rotatory | x |
| V33 (11) | 20 | 0 | 0 | 2 | 6 | 8 | 14 | unsteadiness | |
| V34 (12) | 5 | −2 | −6 | 2 | 8 | 2 | 12 | rotatory | |
| V35 (12) | 5 | −2 | 2 | 4 | 8 | 6 | 16 | unsteadiness | x |
| V36 (13) | 5 | 1 | 2 | 2 | 2 | 2 | 12 | rotatory | x |
| V37 (13) | 7 | −2 | −4 | 2 | 8 | 2 | 14 | unsteadiness | x |
| V38 (13) | 7 | 0 | 2 | 4 | 12 | 12 | 20 | rotatory | |
| V39 (14) | 5 | 0 | 0 | 4 | 4 | 14 | 16 | unsteadiness | x |
| V40 (14) | 6 | −2 | −4 | 2 | 8 | 4 | 20 | rotatory | x |
| V41 (14) | 5 | −4 | −4 | 4 | 10 | 8 | 18 | rotatory | |
| V42 (15) | 6 | 0 | −8 | 4 | 10 | 2 | 14 | rotatory | x |
| V43 (15) | 7 | 0 | −8 | 2 | 8 | 6 | 10 | unsteadiness | x |
| V44 (15) | 5 | −2 | −4 | 4 | 8 | 6 | 25 | unsteadiness | |
Other notes are as in Table 1. The different sensations perceived by the children with vertigo are reported (rotatory translation, rolling sensations and unsteadiness), as are headaches.