Rop screening in preterm babies of 26 weeks and 30 weeks respectively

Rop screening in preterm babies of 26 weeks and 30 weeks respectively.

  1. Aft 4 weeks in both
  2. Aft 2 weeks in first baby and aft 4 weeks in nxt
  3. Both babies at 31 weeks
  4. None( comnt btr option)

Opthol book says option -2
Pedia book(indian guidelines) says it option 1

Ans B