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A breakdown of the number of optical practices and how many sight tests are performed in each type.
| Practice type | Number of practices | Sight tests | First sight tests |
|---|---|---|---|
| Multiple | 65 (33.2%) | 416,763 (62.7%) | 25,656 (65.1%) |
| Independent | 131 (66.8%) | 247,717 (37.3%) | 13,736 (34.9%) |
