Unit 4 - CNVM Flashcards
What is the incidence of early AMD according to Beaver Dam study?
14.3%
What is the incidence of early and late AMD according to Blue Mountain study?
10.8%
2.8%
What are the risk factors of developing AMD?
- Age
- Race
- Smoking
- CV risks
- Dietary factors, high fat and obesity
- Asprin
- Gender, ? F
- Cataract surgery?
- Sunlight exposure?
How many nAMD patients develop nAMD in the fellow eye in one year and 4 years?
12%,
27%
Which genes are involved in >60% of severe AMD cases?
Complement factor H
Chromosomal 10q26
Which other genes are involved in AMD risk?
C2/FB
C1
CFI
APOE
What is the risk of developing advanced AMD within 5 years with an AREDS score of4?
50%
What factors score a point in the AREDS risk score?
- drusen >125um (one point per eye)
- pigment changes (one point per eye)
- intermediate drusen 63-125 microns in both eyes (one point)
What is the type 1,2,3, grading of CNVM based on ?
OCT images
What is the occult, classic grading based on?
FFA studies
Describe an occult/type1 CNVM lesion?
CNVM under RPE
Describe a type 2 cnvm lesion?
above RPE but subretinal
Describe a type 3 CNVM lesion?
Retinal angiomatous proliferation lesion starts within retina as a proliferation of retinal capillaries.
What type of patient gets RAP?
Older patient
What features are there of RAP?
Bilateral
Juxtafoveal
Poor response to anti-VEGF
Poor prognosis