I Had 4 Lid Blepharoplasty 3 Days Ago. Today the Whites of my Eyes Are a Bit Yellow, Normal?

Nothing to worry about and it will resolve shortly.

It is not unusual after having all 4 eyelids operated on to have some bruising. The bruising resolves as the blood pigment (hemoglobin) which is purplish breaks down and spreads. The hemoglobin further breaks down to bilirubin which is yellow in color and as it spreads can temporaily stain the white part of the eye.

FYI: Your right - When the liver is unable to keep up (e.g. cirrhosis)  with getting rid of old blood cells to much bilirubin gets into the circulation and your whole body (not just your eyes turns yellow). 

This yellow coloration is either some mild swelling of the surface of the eye (chemosis) or is a resolving bruise, which changes from red to yellow as it dissipates.  It will resolve shortly.

What you are seeing is a mild bruise which can happen to the white part of the eyes from any eye or eyelid surgery. It will go away like all bruises.