ROP Stage 0
Immature vascularisation, no ROP
ROP Stage 1
Flat white demarcation line between vascularised retina posteirorly and avascular retina anteriorly
ROP Stage 2
Ridge with height and width
with or without small tuft of fibrovascular proliferation
ROP Stage 3
Ridge with extraretinal fibrovascular proliferation - gorwth of vascular tissue from posteiror margin on to retina/into vitreous
ROP Stage 4a
Subtotal retinal detachment, extrafoveal
ROP Stage 4b
Subtotal retinal detachment, including fovea
ROP Stage 5
Total retinal detachment, open or closed funnel
Which way should prisms face to correct head turn in right jerk nystagmus
In right jerk nystagmus
Right head turn - to get a left gaze
Null zone is left gaze (where eye movements are slowest and most stable)
To reduce head turn
Apex of prism toward the null zone - shifting image into null zone
So RE base out, LE base in
When can examinations of infants without ROP be ceased?
Vascularisation has extended into zone III (which is unlikely to happen before 36 completed weeks of post-menstrual age)
What can examinations of infants with any stage of TOP be ceased?
2 consecutive examinations:
Partial resolution progressing toward complete resolution
Change in colour of the ridge from salmon pink to white
Growth of vessels through the demarcation line
NF1
Marfan’s
Aniridia
Which chromosome
NF1 - 17
Marfans 15
Aniridia 11
What are risk factors for JIA related uveitisi
Female
ANA positivity
Younger age of diagnosis
Oligoarthritis > polyarthritis > systemic
ROP screening Baby < 31 weeks or <1501g
MUST screen between 31-37 weeks or 4 weeks post natal
ROP screening baby 31-32 weeks
Screen between 36-37 weeks or 4 weeks post natal
What ROP to treat
Zone 1, any stage with plus
Zone 1, stage 3 without plus
Zone 3, stage 2/3 with plus
What ROP to monitor closely and consider treating
Zone 1, stage 1/2 without plus
Zone 2, stage 3 without plus
What can you do 1 weekly follow up after first ROP screening
Zone 1
Posterior zone 2
Any plus or pre plus
Any stage 3
When can you do 2 weekly follow up after first ROP screening
Vessels end in mid or anterior Zone 2 or Zone 3
No plus or pre-plus
No ROP or stage 1 or 2 ROP
