Unit 6 - ROP

Question 1

What are the risk factors for developing ROP?

Answer 1

Birthweight less than 1500kg
<32 weeks
Oxygen
Systemic illness
Asian>white>african-americans

Question 2

When is screening started?

Answer 2

When they reach 30 weeks

Question 3

When is the peak treatment week?

Answer 3

36

Question 4

What features are there of ROP

Answer 4

Popcorn fibro-vascular tissue in front of ridge

Question 5

What are the stages of ROP?

Answer 5

1. Demarcaton line
2. Ridge
3. Vacular proliferation on ridge
4. Subtotal RD
5. Total RD

Question 6

What is the diff dx?

Answer 6

Familial exudative vitreoretinopathy - looks like ROP but birth weight and gestation are normal

Question 7

Why isn’t anti-VEGF used?

Answer 7

Could lead to neurodevelopmental delay
May have to laser anyway

Question 8

What sort of refractive error will ROP kids have?

Answer 8

Mypia, and likely to be 50% higher than control
Anisometropia, 6 x more likely

Question 9

What is laser associated with in terms of Rx error?

Answer 9

Myopia

Question 10

What are the advantages of using anti-VEGF in ROP?

Answer 10

Less myopia

Question 11

What other issues will prem babies have?

Answer 11

Cerebral visual impairment
Perventricular leucomalacia (haems in brain - optic disc will be abnormally cupped)
Large angle kappa - Masquerades as a squint
Retinal detachments

Question 12

What is plus disease?

Answer 12

Dilated toruous vessels on top of ROP