Table 1:
The mean and standard deviation for vergence and accommodation system in Malay primary school children.
| Vergence and Accommodation | Mean | Standard deviation |
|---|---|---|
| Monocular accommodation facility (in cpm) | 20.08 | 6.43 |
| Binocular accommodation facility (in cpm) | 19.77 | 6.26 |
| Accommodation accuracy (in D) | 0.44 | 0.27 |
| Positive relative accommodation (in D) | −3.90 | 1.32 |
| Negative relative accommodation (in D) | 3.25 | 0.80 |
| Heterophoria at distance (in PD) | −0.28 | 0.82 |
| Heterophoria at near (in PD) | −1.84 | 3.94 |
| Vergence facility (in cpm) | 20.18 | 5.00 |
| Positive fusional reserve at near (break point) (in PD) | 19.40 | 9.38 |
| Positive fusional reserve at near (recovery point) (in PD) | 14.60 | 8.86 |
Notes: cpm indicates cycles per minute D indicates dioptre PD indicates prism dioptre