Iris Flashcards
(17 cards)
the long ciliary nerves of the iris innervate…
the DILATOR muscle
the short ciliary nerves innervate…
the SPHINCTER muscle
what makes up the uvea
CB, choroid and iris
what is NVI
new blood vessels forming on the iris
what area usually causes NVI-retina or cornea?
retina (posterior seg problem)
what can NVI lead to that is very dangerous?
neovascular glaucoma = glaucoma of the angle
what two conditions are the largest causes of NVI
diabetes and central retinal vein occulusion
how treat an NVI
refer for a pen retinal photo coagulation
what is an iris nevus?
mass on the pigmented part of the iris
is a nevus malignant or benign
benign
what is an iris melanoma
it is a slow growing mass ont he iris
is a melanoma malignant or benign
malignant
what is Neurofibromatosis I
a disorder where there are spots on the face and eye
which one is more common between neurofibromatsis 1 AND 2
1 is more common than 2
Lisch nodules are associated with NF 1 or 2
NF 1
a definiciney in what enzyme causes albinism
tyrosinase
T/F. normal pigmentation in the body does not mean there will be no pigmentation in the eye for albino people.
false-there can be pigmentation in the eye
