Figure 19. Section of skin from beta-burn area on backof
Figure 17. Persisting depigmented areas, 6 months
after exposure, in areas of mostsevere lesions.”
neck of 56-year-old woman (No. 34) at 10 years after exposure (100 x). Note atrophy of epidermis with narrowing of stratum granulosum andfingerlike projections of
rete pegs. Slight atrophy of the sweat gland ductsis also
present.11
ac Seaweaneceaei
eo
Figure 18. Ear lesion healed, 6 months
Figure 20. Pigmented nevusiike lesions in previous
the neck regions that sustained severe beta burns
and unexposed populations. [n addition, special
have been enhanced by the skin exposure (see Fig-
the eves have been doneat intervals by ophthal-
after exposure, with considerable scarring.”
suggests that the developmentofbenign lesions may
ure 20). Possible cocarcinogenic factors such as the
ultraviolet radiation in tropical sunlight and skin
beta-burn area of neck (subject No. 78).1
examinationsfor possible effects of radiation on
mologists accompanying the medical team,first in
May 1954 (2 monthsafter the accident) and then
irritation from coral, trauma, and infections may
in 1955, 1956, 1957, 1958, 1959, 1962, 1964, 1967,
skin more likely, but the dark pigmentation should
offer some protection, as it has been shownthat
testing of vision, accommodation, muscle balance,
render the developmentof malignant changes in the
skin canceris less prevalent among Negroes.
£. OPHTHALMOLOGICAL FINDINGS
Routine ophthalmological examinations (in- .
cluding funduscopic) have been included in the
regular
ical examinations of both the exposed
500n120
1971, and 1972. The routine examinations include
and pupillary reactions; external examination;
and funduscopy.Vision is tested with the Snellen
chart and the E-chart when necessary. Intraocular
tension has been measured when indicated, and
color vision has been tested on several occasions.
Special examinations have includedslit-lamp and
fundus photography.Aspart of the aging studies
quantitative changes in certain eye characteristics