This is most probably breastfeeding or breast milk jaundice, continue exclusive breast feeding, this will subside by itself.

Don't worry . This is normal physiological jaundice of the newborn or maybe mild incompatibility due to the ABO blood group.  Sometimes the yellowness of the eyes may be there even upto 5 to 6 weeks of age . If the urine color is not dark yellow and stools are normal goldeb yellow color and baby is growing well there is nothing of concern