<prompt> A preterm baby of 26 weeks of gestation is born. At what age should screening for Retinopathy of Prematurity ROP be done2 weeks postnatal life3 weeks postnatal life4 weeks postnatal life5 weeks postnatal life  <response>: Normally, for all Preterm babies ROP screening is done 32 weeks of gestation or 4 weeks postnatal life whichever is later.But, in newborn born 28 weeks of gestation, ROP Screening is done at 3 weeks postnatal life. 