Time interval between first consultation with a primary healthcare professional (PHP) and first consultation with an ophthalmologist by first PHP consulted in 100 patients with retinoblastoma
| First PHP consulted |
Median lag 2 time
in weeks (range) |
| General practitioner | 1 (1–56) |
| Health visitor | 13 (1–46) |
| Optician | 1 (1–10) |
| Miscellaneous | 1 (1–15) |
| Overall | 2 (1–56) |
↵Lag 2, time interval between first consultation with a PHP and first consultation with a local ophthalmologist.