Cyclotron-induced Radiation Cataracts

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Abstract
The histories and ocular defects of 10 subjects who were exposed to cyclotron radiation and developed varying degrees of cataracts are discussed. The affliction varies from severe handicap with serious loss in vision (3 men), through minor involvement with normal or only slightly reduced vision (4 men) to cases with minimal, insignificant, and doubtfully relevant changes (3 men). All the observed ocular changes follow the same general pattern involving clouding and opacities in the posterior cortex of the lens. Prognosis for successful surgical intervention in the severe cases is good, since there is no retinal damage. Severe cases have a latent period of about 3 yrs. after exposure. Estimation of exposure to radiation was calculated by subjects, and, while the estimates are for exposures occurring 3-9 yrs. ago and thus are far from accurate, the cumulative estimated doses were surprisingly low (median 50, range 10-135 n-units).
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