Posterior uveitis, PU,
petinitis, or choroiditis
- Inflammation (irritation, swelling,
damage) of the uvea, the part of the eyeball that contains
the retina (i.e., screen upon which images are project),
ciliary body (muscles that control the lens), and the
choroid (a rich layer of blood vessels covering the retina).
PU refers to the inflammation of the choroids and the
retinal layer leading to vision
- Sudden occurrence is rare.
- Decreased vision -- blurred vision
- Distortion of size and shapes of the
- Often affects both eyes
- Pain and redness is rarely seen
unless the iris is involved as well.
- There may be signs of related
disorders (i.e., infection, etc.).
- Floaters or floating
black spots may be seen in the field of vision.
- Sensitivity to
- 25% of cases are without a cause (idiopathic).
- Bacteria, parasites, viruses, and fungi
(commonly affects newborns)
- Herpes virus
- And many others
- Autoimmune disorders -- the body's natural defenses
attack the uvea for reasons unknown at this time.
- Some malignancies (cancers) may be mistaken for eye
inflammation, such as:
- Retinitis pigmentosa
- Other conditions of the eye:
- Acute retinal necrosis
- Pars plantis
- The doctor may consult with an ophthalmologist (eye
- General exam must be done.
- Vision exam -- using an eye chart, there may be spotty
vision loss corresponding to areas where the retina or
choroid layer is damaged.
- The eye is examined with an Ophthalmoscope (device
which allows the doctor to see inside the eyes) or a slit
lamp -- a special microscope used to see the back
of the eye. Slit lamp exam is done after staining the eye
with an orange fluorescein dye, and applying eye drops to
enlarge the pupils (enhances viewing back of eyes).
- Floaters (debris
from damaged retina) and scars (damaged areas) may be
- Blood tests, X- rays, and other tests may be done to
identify the cause.
- Treat underlying cause
- Warm compresses with a warm (not
hot) towel help relieve discomfort. Repeat as needed.
- Painkillers -- over-the-counter
(e.g., Tylenol) or if pain is severe, Codeine (prescribed).
- Infections must be treated first.
- Eye is protected with dark
sunglasses with UV protection
- Eye drops such as Isopto ophthalmic
solution are often given, along with steroid eye drops
(Prednisolone acetate) until symptoms resolve.
- Steroids are not to be given if
infection is not treated.
- Check to make sure patient is not on
any medications that could cause
doctor immediately, and get routine eye exams (at least once
a year) if you have an autoimmune disorder or are on
medications that may cause eye problems.
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