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.
Socialization is a fundamental sociological concept, comprising a number of elements. While not every sociologist will agree which elements are the most important, or even how to define some of the elements of socialization, the elements outlined below should help clarify what is meant by socialization.