In his talk, dr. Beenakker will discuss:
-	The technical requirements for high-resolution MR-images of the eye
-	The added value of MRI in the context of ocular proton therapy planning
-	The interobserver variation of MR-based delineation of intra-ocular tumors
-	A comparison between MRI- and ultrasound-based tumor dimension measurements
-	A comparison between MRI- and biometry-based eye dimension measurements