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36 Cards in this Set

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  • Back
The iris is about _____ in Diameter and ____ mm thick.
12mm, .5mm
The ____ pigmentation determines color of the eye.
stromal
The major arterial circle is made up of the _______ srteries.
long posterior and anterior ciliary arteries
_________ form the minor circle (arteries) at the collarette.
tributaries of the major circle
A _______ is a failure of atrophy of the anterior mesoderm. Very common.
persistent pupillary membrane
_______ is an extension of the pigmented epithelium of the iris over onto the anterior iris as a result of hyperplasia.
Congential ectropion of the pigmented border (watermelon seeds)
_______ are darkly pigmented hypertrophic growths of the pigmented epithelium at the pupillary border.
Flocculi
Flocculi may be _____/_____ in form--usually bilateral and mostly located at the ______ pupillary margin.
nodular/cystic, superior
Fuch's heterochromia is due to ____________. The Blue iris becomes _____ and the brown iris becomes ______.
chronic insidious anterior uveitis. darker, lighter
______ (aka_______ ) is a wreath of white or tan colored spots at the periphery of the iris. (found most often in down syndrome)
Wolfflin or brushfield spots
Is vision affected in simple coloboma?
rarely
Typical coloboma (not simple) involves the ____, ____, ____, and the _____. Does this decrease vision? What other 2 things are commonly seen with this?
choriod, retina, ciliary body and the iris. Vision IS decreased, but the macula is spared. Strab and nystagmus
What 3 problems go along with aniridia?
photophobia, pendular nystagmus, poor va due to foveal hypoplasia
What are 3 things of high prevalance involved with aniridia?
1- juvenile glaucoma
2- cataracts
3- corneal opacities
What is the mode of inheritence for ocular albinism?
x-linked
What 4 things go along with albinism?
1- photophobia, poor acuity, pendular nystagmus, and high refractive error
Albinism is an inborn error of metabolism of _____-.
tyrosinase
Anterior Uveal cysts are _________.
round elevations of the iris
You can see anterior uveal cysts best during _____.
maximum dilation and gonio
A pigmented cyst is of the ______, while a clear cyst is of the ______.
pigmented iris, ciliary body
T or F: anterior uveal cysts may disappear.
true
ICE syndrome stands for _____?
Iridocorneal endothelial syndrome
the main issus in ICE syndrome is ______. What can this lead to?
corneal endothelial anomaly, corneal edema--> closing angle with glausoma and iris changes
Is ICE unilateral or bilateral
unilateral
What are 3 common manifestations of ICE syndrome?
1- iris atrophy, holes
2- reduced VA
3- pain
What are 3 variants of ICE syndrome?
1- progressive iris atrophy
2- Chandler's syndrome
3- Cogan-Reese
If you dont see any iris changes, but corneal edema is present and normal IOPs--what form of ICE syndrome can this be?
Chandlers
During __________, blunt trauma tears the iris at the thinnest point. Can this cause monocular diplopia?
Iridodialysis
What are 6 signs of trauma?
1- iridodialysis
2- ectopic lentis
3- angle recession
4- traumaic cataract
5- commotio retinae
6- Vossius ring
After blunt trauma to the globe can the IOP be increased or decreased?
yes
Pigment dispersion syndrome is most common in people with ________ error.
low myopic
What are the 6 most common causes of rubeosis irides (NVI)?
1- DR
2- CRVO
3- uveitis
4- POAG
5- trauma
6- retinoblastoma
How do you treat someone with NVI?
photocoagulation
Malignant melanoma of the iris is greatest _____ the horizontal meridian.
below
What are 4 signs of malignant melanoma of the iris?
1- rapid growth
2- vessels
3- acquired iris freckles
4- ectropian of the pigmented border
5- incomplete dilation
If you see a "moth eaten" iris in an old person--is this normal.
yes, a thinning ofthe stroma at the pupillary border