A microwave heating technique for the hyperthermic treatment of tumours in the eye, especially retinoblastoma.

A special microwave stripline applicator (2450 MHz) has been designed for the hyperthermic treatment of eye tumours, especially retinoblastoma. The measured microwave absorbed power distribution was put into a thermal finite difference computer model of the human and rabbit eye to calculate the resulting temperature distributions. The temperature distributions have been experimentally verified on rabbit eyes, and satisfactory temperature distributions can be obtained. The anterior part as well as the posterior part of the eye can be heated uniformly to temperatures in the range of 37-44 degrees C. The complete hyperthermia system is described.