The reason that retinal detachment is so critical is that it is a potentially blinding disease. The retina depends on two blood supplies to function properly and allow one to see. The first blood supply is within the retina. The second is on the back wall of the eye.
Internalisation (or internalization) in sociology and other social sciences is the process of acceptance of a set of norms and values established by people or groups which are influential to the individual through the process of socialisation.
verb (used with object), socialized, socializing. 1. to make social; make fit for life in companionship with others. 2. to make socialistic; establish or regulate according to the theories of socialism. 3. Education. to treat as a group activity: to socialize spelling quizzes.