The Human Lens- in Relation to Cataract -- Contents -- Chairman's introduction -- The effects of the ageing lens on vision -- Discussion -- Morpho-logical changes of the lens with age and cataract -- Discussion -- Lens changes responsible for increased light scattering in some types of senile cataract -- Discussion -- General Discussion I Lens change with age and cataract: slit-image photo-graphy -- Differences in proteins and in the water balance of the lens in nuclear and cortical types of senile cataract -- Discussion -- Role of membranes in controlling ion and water movements in the lens -- Discussion -- Enzyme activity patterns in clear human lenses and in different types of human senile cataract. -- Discussion -- Membrane lipids and proteins in ageing lens and cataract -- Discussion -- The glucoside of 3-hydroxykynurenine and other fluorescent compounds in the human lens -- Discussion -- Oxidation of thiol groups of the human lens -- Discussion -- Preliminary observations upon the proteins of the human lens -- Discussion -- Low molecular weight proteins of the lens -- Discussion -- Immunological studies on normal and pathological lenses -- Discussion -- Miotic-induced cataract -- Discussion -- Cataract in Punjab -- Discussion -- Problems of cataract epidemiology with special reference to diabetes -- Discussion -- General Discussion II Classification of cataract -- Chairman's concluding remarks -- Index of contributors -- Subject index.