or atopic keratoconjunctivitis (AKC), the mechanisms are more complex and probably involve both IgE and T-cell-mediated responses. Only the last two diseases develop corneal complications (Table 1).

ANTIGEN–ANTIBODY complexes can dissociate under suitable conditions (increased ionic strength, extreme pH values), which indicates that the reaction depends on the medium and is reversible. It ...

Prof. Price writes from the point of view of an organic chemist ; but is quick to perceive relevant physical evidence, and makes a number of interesting suggestions on problems of mechanism.