Occult, type 1 no PED wet ARMD
type 1 cnv
In this type of ARMD, there are new blood vessels, but they are not clearly seen with the angiogram. 'Occult' CNV is the term given to a specific 'blotchy' appearance of the angiogram. Occult ARMD is probably an early phase of classic, see . Occult and classic patterns can occur together. Anti-VEGF drugs generally help. The symptoms of this type of CNV are the same as 'classic CNV', except the condition takes longer to develop. Without treatment, this type 2 occult CNV usually turns into classic CNV over the next months or years, to cause poor central vision.
- Large occult membranes can develop haemorrhages with anti-VEGF treatment (BJO 2008).
- photo another another..occult/mixed another flash another large diagram
- The term occult is not really used now: the condition is a subtype of wet armd sometimes termed type 1 cnv.
- Sometimes there is a hyper-reflective material which is related to prognosis, and to pachychoroidopathy (= thickened choroid).
- Sometimes there is fluid, but if the fluid is stable injections don't seem to help.
- This is similar to the type 1 cnv below, the difference being there is no ped