After being diagnosed with cancer, and particularly after having undergone cancer treatments, it is especially important for patients to receive good eye care.
One lasting side effect if radiation can be dry eye syndrome. It is particularly important that any lubricating eye drops that patients use are free of preservatives.
Other complications include radiation induced retinopathy. Patients are particularly susceptible to this condition if they had chemotherapy at the same time as they were receiving radiation treatments. Retinopathy caused by radiation looks much like diabetic retinopathy and is treated in the same way.
Source: Optometry Times