tear gland
pupil
The Eyes
217
CHAPTER
16
The conjunctiva is
the thin layer that
covers the white of
the eye.
iris
tear tube
from eye
to nose
The cornea is the
clear or transparent
layer that covers the
iris and the pupil.
DANGER SIGNS
The eyes are delicate and need good care. Get medical help fast when any of
the following danger signs occurs:
1. Any injury that cuts or ruptures (goes through) the eyeball.
2. Painful, grayish spot on the cornea, with redness around the cornea
(corneal ulcer).
3. Great pain inside the eye (possibly iritis or glaucoma).
4. A big difference in the size of the pupils when there is pain in the eye or the head.
A big difference in the size of the
pupils may come from brain damage,
stroke, injury to the eye, glaucoma, or
iritis. (A small difference is normal in
some people.)
5. Blood behind the cornea inside the eyeball
(see p. 225)
6. If vision begins to fail in one or both eyes.
7. A white glow or reflection in the pupil. This could be a sign of cancer
(retinoblastoma) or a cataract (see p. 225).
8. Any eye infection or inflammation that does not get better after 5 or 6 days
of treatment with an antibiotic eye ointment.