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Rate of light flashes.
| Characteristics | Light Flashes | No Light Flashes | Rate of Light Flashes (%) |
|---|---|---|---|
| Retina | |||
| Irradiated | 54 | 43 | 62% |
| Not irradiated | 34 | 490 | 6% |
| Age (years) | |||
| <50 | 15 | 45 | 25% |
| >50 | 73 | 488 | 13% |
| Gender | |||
| Male | 50 | 356 | 12% |
| Female | 38 | 177 | 18% |
| Irradiated Site | |||
| Brain | 44 | 61 | 42% |
| Head and Neck | 17 | 39 | 30% |
| Chest | 18 | 156 | 10% |
| Abdomen | 1 | 58 | 2% |
| Pelvis | 8 | 211 | 4% |
| Limbs | 0 | 7 | 0% |
| Radiotherapy Technique | |||
| 3D-CRT | 61 | 236 | 21% |
| IMRT | 12 | 107 | 10% |
| Proton | 15 | 190 | 7% |
