Malignant epibulbar melanoma: natural history and treatment by radiotherapy.

One hundred and eighty-four cases of malignant melanoma of the lids and epibulbar region were seen in the Radiotherapy Department of the Royal Marsden Hospital during the period 1943-74. Some of these tumours were radiosensitive and could thus be treated by radiotherapy without loss of the affected eye. Their clinical and histological features are described.

Management of sixth nerve palsy and Duane's retraction syndrome.

In sixth nerve palsy the role of a muscle-transposing procedure, as compared with a recession-resection procedure, is discussed, and reference is made to the special problems when the palsy is the result of hydrocephalus with frequently an associated A phenomenon. In Duane's retraction syndrome, surgical treatment should be limited as a general rule to a restoration of binocular function in the primary position with elimination of the compensatory head posture, because of an understanding of the underlying anomaly of innervation.