In malignant choroidal melanoma will a delay in radical treatment influence prognosis?

In a series of 568 patients with choroidal malignant melanoma some 36 were found to have a history of at least 4 years prior to enucleation. Of these, 20 had actually been observed for a period of 3 years or more before such treatment was deemed necessary. Computer analysis of a series of risk factors and their effect on prognosis showed that there was no worsening of mortality as compared to the series as a whole and further that the post enucleation peak of mortality was the same in this small group as in the whole series.