The Medical Effects of the Nagasaki Atomic Bombing
Medical aspect
The Effects of the Nagasaki Atomic Bombing on the Human Body
Acute phase
Rate of deaths due to the atomic bomb
Frequency of acute symptoms
Bone marrow
Early phase of late effects
Atomic bomb cataract
Chromosomal aberrations
Late atomic bomb effects
Thyroid cancer
Breast cancer
Stomach cancer
Excess relative risk of malignant tumors by site
Multiple primary cancers
Mental effects
Physical aspect
Physical damages
Map of damage
Physical effects
Blast wind
Heat rays
Atomic bomb survivor database
Estimation of radiation dose using the ESR signal from teeth
Radiation dose and death rate
The PDF booklet is available to download.
Click below images.
Japanese/English   Japanese
Chinese   Chinese
Korean   Korean
Atomic bomb cataract
Severe atomic bomb cataract. The doughnut-shaped opacity peculiar to radiation-induced cataract is evident in the posterior pole of the crystalline lens (age-associated bracket-shaped opacity is also present in the peripheral portion, woman, 21 years old ATB, exposed on the street 805 meters from the hypocenter, with acute symptoms).
<photo courtesy of Dr.Tsugihiko Tokunaga>

A cataract is an opacity of the crystalline lens associated with aging, diabetes mellitus, radiation, trauma and other causes. Atomic bomb cataracts appeared between about three months and ten years after exposure to the bombing, the progress of visual disturbance being promoted additionally by aging. The incidence is higher the shorter the distance from the hypocenter.
Scheme of cataract
Atomic Bomb Disease Institute