The main reason why it is important for infants' eyes to be examined promptly, when there is a question about whether they are straight,is because a crossed eye will gradually become nonseeing if efforts are not begun early to make the child use it.
Newborn set up Nikon Fleece fabric draped over sofa and large ottoman. Window to the right and three large windows in front of this set up. (when I shoot baby my back is to the three large windows). All natural light. Baby is 13 days old.