Photodynamic therapy

With this treatment, a dye called Verteporfin is injected into a vein in the arm, so that it circulates around the body and through the tumour. After a few minutes, an infra-red laser is directed at the tumour for about 83 seconds and this activates the dye so that it kills the tumour. This treatment is painless. It is necessary to keep out of bright sunlight for about two days afterwards.


Photodynamic therapy is very effective for choroidal haemangiomas. There is some evidence that this treatment may also be useful for some other tumours, such as vasoproliferative tumours and small choroidal melanomas.