RETINOPATHY OF PREMATURITY

Question 1

Retinopathy of prematurity (ROP) is a proliferative retinopathy affecting premature infants of very low birth weight. who have been exposed to ______

Answer 1

High ambient Oxygen concentrations

Question 2

zone wherein

is bounded by an imaginary circle. the radius of which is twice the distance from the disc to the macula.

Answer 2

ZONE 1

Question 3

ZONE WHEREIN

extends concentrically from the edge of zone]:

its radius extends from the center of the disc to the nasal ora serrata.

Answer 3

ZONE 2

Question 4

ZONE WHEREIN

consists of a residual temporal crescent anterior to zone 2

Answer 4

ZONE 3

Question 5

(demarcation line)

is a thin. FLAT. tortuous. grey-white line running roughly parallel with the ora serrata more prominent in the temporal periphery. There is abnormal branching or arcading of vessels leading up to the line

Answer 5

STAGE 1 ROP

Question 6

(ridge)

arises in the region of the demarcation line. has height and width. and extends above the plane of the retina.

Blood vessels enter the ridge and small isolated neovascular tufts

(‘popcorn’) may be seen posterior to it

Answer 6

STAGE 2 ROP

Question 7

severe extra-retinal fibrovascular proliferation

Answer 7

STAGE 3 ROP

Question 8

Partial retinal detachment

Answer 8

STAGE 4 ROP

Question 9

TOTAL RETINAL DETACHEMENT

Answer 9

STAGE 5 ROP