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
What features are there of IPCV?
Peaked PED with srf
Sub retinal haem
OCT very sensitive and specific in detection
Which study looked at PDT and Lucentis in IPCV?
Everest (climbing the peaks of IPCV)