little "eye boogers" are just fine. this is just thickened tears. many babies have narrow nasolacrimal ducts -- the tiny drainage ducts from the corner of the eyes to the nose. if the tears can't drain down the ducts for whatever reason they will accumulate in the mornings or after naps. most (not all) tear drainage ducts will open up fully after about a year old. if the conjunctiva is red or irriated then a mild infection could also do this.
what does eye mucus mean in a 6 month old baby? . my baby has eye " boogers" and my wife is concerned.