24
(visual acuity, arcus senilis, accommodation, retinal arteriosclerosis) have been recorded.8.13.32
1. General Findings
has been found by others to be characteristic of
people living on low coralatolls in the Pacific and
is thoughtto be related to irritation of the eyes bv
coral dust, salt water, and bright sunlight. The
Somegeneralobservations on the eves of the
Marshallese have indicated differences from the
other major findings listed were related to general
aging effects (loss of visual acuity, cataract forma-
ethnic background andpossibly to environmental
factors. The major eve findings for the past 5 years
are listed in Table 14.
The high incidence of pingueculae and pterygia
is the most notable findinglisted in the table. This
balance, etc.) and these appeared to occur to a
lesser degree in the Marshallese than in Americans, althoughthe incidenceof arcus senilis and
cataracts seemed higher. The Marshallese hadless
myopia, aberrations of color vision, and ambly-
eves of U.S. Caucasians which may berelated to
tion, loss of accommodation, loss of ocular muscle
Table 14
Ophthalmological Findings, 1970-1974
Rongelap and
Ailingnae exposed
(70%)
Ocular condition
Rongelap unexposed
(133*)
Utirik exposed
(100*)
No.
%
No.
%
No.
%
Anisocoria
Arcus senilis
\
22
L.+
31.5
0
34
0
25.5
0
21
0
21
Chalazion |
3
4.3
1
0.75
0
0
Conjunctivitis
Corneal pigment
Corneal scar
Driisen
0
0
2
0
0
0
3.0
0
2
0
3
2
1.50
0
3.75
1.50
0
0
I
0
Enucleation
Glaucoma,primary
Glaucoma, secondary
Lens:
Cataracts
1
0
0
1.4
0
0
0
0
1
0
0
0.75
0
0
0
0
0
0
Argyll-Robertson pupil
Choroiditis
Congenital defects
Enophthalmos
Lenticular opacities
Polychromatic sheen
Macular degenerggion
Nightvision impairment
Nystagmus
Phthisis bulbi
Pinguecula
Positive Romberg
1
20
2
0
1.4
3.0
3.0
0
0
2
0
0
0
1.50
0
0
0
1
0
l
19.5
20
20
7
10.0
13
10.0
17
17
2
0
1
!
7
1
3.0
0
1.4
14
1
0
2
1.4
0
10.0
1.4
6
0
10.5
0.75
0
1.5
0
4.5
0
17
1
0
0
Retinalarteriosclerosis
11
15.7
‘19
14.0
1
1
1.4
0
2
2
0
2
1
2
3.0
3.0
0
3.0
1.4
3.0
0
0
2
0
2
0
1
0
0
15
0
1.5
0
0.75
0
0
0
29
7
0
0
29
3.0 -
1
0
0
0.75
31.0
2
17
0
1
41
*Numberof people examined.
1
26
13.0
1.4
24.0
Xanthoma
0
)
1
0
17.0
9
1
17
Retinal hemorrhages
Retinal scars
Retinopathy, diabetic
Strabismus
Uveitis
Vitreous opacities
l
0
12
Proptosis
Pterygium
Ptosis
0
0.
0
3
2
3
0
1
0
7
0
0
1
0
3
2?
3
0
1
0