However, ROP might not be visible until several weeks after birth. So, premature babies at risk for ROP are usually checked by an ophthalmologist at 4 to 6 weeks after birth and again thereafter. NovedadesPrimark CaresVer todo RopaTops y camisetasSudaderas con y sin capuchaPantalones de chándalCamisetas y sudaderas con estampado gráficoPantalo