Pars plana vitrectomy (PPV) is integral to the management of late complications in diabetic retinopathy. As a greater understanding of the pathophysiology of diabetic eye disease has developed, so the role of PPV has evolved. This article reviews the current indications for PPV in diabetes (vitreous haemorrhage, tractional retinal detachment and combined rhegmatogenous and tractional retinal de...

This paper deals with the prepositions which introduce an adjunct of duration, such as the English for and in. On the basis of both crosslingual and monolingual evidence these adjuncts are argued to be ambiguous between a floating and an anchored interpretation. To capture the distinction in formal terms I employ the framework of HEAD-DRIVEN PHRASE STRUCTURE GRAMMAR, enriched with a number of d...