ObjectiveTo research in the essence of the caring experience of caregiver for children with eye enucleation, to find out the caring experience and caregiver's needs, to give them physical and mental nursing in order to make them cooperate with us and implement effective treatment to children.Methods12 caregivers for children with eye enucleation were given semi-structured interviews. The materials were analyzed, putted in order, and themes were got.ResultsThrough deep interview of 12 caregivers, five titles were summarized:overburdened psychology, limited schedule, requirement of health information, overload economic burden, to return and rebuild.ConclusionsThe results could help nurses to give more correct health education and psychological care to caregivers. Then caregivers can cooperate with nurses to give effective treatment to children, thus life quality of children with eye enucleation will be improved a lot.

Polyethylene glycol (PEG) is extensively used to increasing the in vivo and in vitro stability of liposomes. However, PEGylated liposomes also produce some negative effects with further research, such as low cellular uptake, poor "endosomal escape" of pH sensitive liposome (PSL) and accelerated blood clearance (ABC) phenomenon, and this situation is referred as the "PEG dilemma". "PEG dilemma" posed severe challenges for the targeted delivery of PEGylated liposomes-loaded anticancer drugs, effective intracellular release of PEGylated PSL-encapsulated gene and protein drugs, and repeated administration of PEGylated liposomes. Therefore, it is urgent to solve the "PEG dilemma". This review focused on the definition, classification of "PEG dilemma", and discussed several possible approaches to overcome "PEG dilemma".