Treatment modalities as per eyeball based on the International Classification of Retinoblastoma (ICRB) (n=194)
| Laterality | ICRB | Treatment options | Frequency (n) | Percentage (%) |
| BL | C | Enucleation after salvage attempt | 3 | 1.5 |
| BR | 3 | 1.5 | ||
| BL | D | Enucleation after salvage attempt | 3 | 1.5 |
| BR | 3 | 4.1 | ||
| BL | C | Enucleation after chemoreduction | 5 | 2.6 |
| BR | D | Enucleation after chemoreduction | 2 | 1.0 |
| BL | E | Upfront enucleation | 3 | 1.5 |
| BR | 9 | 4.6 | ||
| BL | EOE | Upfront enucleation | 19 | 9.8 |
| BR | 12 | 6.2 | ||
| UL | C | Enucleation after salvage attempt | 20 | 5.2 |
| UR | D | Enucleation after salvage attempt | 25 | 11.3 |
| UL | E | Upfront enucleation | 19 | 19.6 |
| UR | C | Enucleation after chemoreduction | 15 | 7.7 |
| UL | D | Enucleation after chemoreduction | 11 | 5.7 |
| UR | EOE | Upfront enucleation | 29 | 14.9 |
| UL | EOE | Upfront enucleation | 13 | 17.0 |
BL, bilateral left; BR, bilateral right; EOE, extraocular extension; UL, unilateral left; UR, unilateral right.