‘Snow ball’ Opacity in vitreous is seen in
A. Pars planitisB. Sarcoidosis
C. Juvenile RA.
D. Toxoplasmosis
E. Fuch’s lesion
The Answer is.(A) Pars planitis ; (B) Sarcoidosis
VITREOUS OPACITIES – [FAQ]
1.
Opaque sheets anterior to the vitreous
Elschnig pearls after extracapsular
cataract extraction or needling (posterior capsule opacification)
Soemmerring ring following extracapsular
cataract extraction or needling
Vitreous adhesions to iris, capsule, or
intraocular lens (IOL) after cataract extraction with vitreous loss
2.
Pseudoglioma-leukokoria
3.
Scattered opacities
A.
Amyloid
disease-rare (seen in older persons)
B.
Ankylosing
spondylitis
C.
Crystalline
deposits
(1)
Asteroid
hyalosis
(2)
Synchysis
scintillans
D.
Endophthalmitis
E.
Heterochromic
uveitis-in persons 20 to 50 years of age; of all uveitis, iris atrophy,
lens changes
F.
Myeloma,
multiple-rare: in persons 50 to 70 years old, associated with bone pain,
anemia
G.
Pigment
cells-posttraumatic (hemorrhage), senile, or melanotic, associated with
rhegmatogenous retinal
H.
detachment.
I.
Protein
coagulated plasmoid vitreous
(1)
Choroidal
tumors (very rare-reported in metastatic breast cancer once)
(2)
Contusions
(3)
Intermediate
uveitis (pars planitis)
(4)
Retinochoroiditis
J.
Snowball
opacities-rare, associated with pars planitis or sarcoidosis,
endophthalmitis (indolent)
K.
Tumor
cells-retinoblastoma in older child, reticulum cell sarcoma (older
persons)
L.
Vitreous
degeneration-Wagner disease, Ehlers-Danlos syndrome, and Marfan syndrome,
senescent aging changes, myopia
M.
Retinitis
pigmentosa
4.
Single opacities
A. Anterior hyaloid remnant (Mittendorf
dot)-25% normal eyes, dot on posterior lens surface
B. Hyaloid remnants (uncommon)-persistent hyperplastic
primary vitreous
C. Foreign body-history of trauma or
surgery
D. Dislocated lens
E. Parasitic cysts
(1) Hydatid disease
(echinococcosis)-rare, children and young adults, tropical area
(2) Cysticercosis-rare
F. Vitreous detachment-common in older or
myopic persons
