Eyes (1) No replacement of lens cells (2) On dying cataract forms (3) Unlike other tissues, on damage by ionizing radiation only one or two cells can initiate cataract formation (4) Neutron and gamma radiation chief producers of cataracts (5) Susceptibility to radiation-induced cataract formation dependent on age Reproductive organs (1) Large single doses of radiation can lead to temporary sterility (2) Chronic irradiation can lead to sterility but the doses have to be considerably in excess of present permissible maximum Effect on life span (1) (2) Chronic irradiation may shorten the expected life span (a) Damage to specific tissues (bo) Lowered immunity (c) Damage to connective tissue (d) Premature aging Correlation o2 shortened life span with radiation dose Genetic effects (1) Inherited characteristics controlled by genes (2) Mutations in both dominant and recessive genes caused by radiation wY . DO# ARCHIVES

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