小新bbs don*t worry. My two bb also have ROP stage 3, younger one even toward worst side at the beginning. Every week Dr. said must see her progress and see whether she need Lasik operation or not. Luckily,now she almost totally recover. U know the whole year only 1 to 2 babies need to do operation. BB still young,still have plenty of time to develop their eyes.
My bb already 5 mths,still keep checking,really painful for them,every time I didn*t want to hear their crying during the checking.