ocr: Group Descreption Group I A Solitary tumor, less than 4 disc diameters in size, at or behind the equator B Multiple tumors, 4 to 10 disc diameters in size, all at or behind the equator Group II A Solitary tumor, 4 to 10disc diameters in size, at or be- hind the equator B Multiple tumors, 4 to 10 disc diameters in size, behind the equator Group III A Any lesion anterior to the equator B Solitary tumors larger than 10 disc diameters behind the equator Group IV A Multiple tumors, some larger than 10 disc diameters B Any lesion extending anteriorly to the ora serrata Group V A Massive tumors invol ...
