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Number of subjects who participated in each condition and the number who provided usable data.
| Condition | Closed Loop | Vergence Open Loop | Accommodation Open Loop | All 3 |
|---|---|---|---|---|
| Infants Attempted | 67 (6–23 weeks of age) | 42 | 26 | |
| Sessions Run | 90 | 46 | 26 | |
| Infants providing usable data | 40 (6–23 weeks) | 11 (12–22 weeks) | 13 (7 to 17 weeks) | 3 |
