Time interval between first consultation with a primary healthcare professional (PHP) and first consultation with an ophthalmologist by first symtom noted in 100 patients with retinoblastoma
| First symptom |
Median lag 2 time
in weeks (range) |
| Leucocoria | 1 (1–48) |
| Squint | 7 (1–80) |
| Change in eye appearance | 1 (1–8) |
| Decreased visual acuity | 2 (1–22) |
| Overall | 2 (1–80) |
↵Lag 2, time interval between first consultation with a PHP and first consultation with a local ophthalmologist.