when babies do not look toward one side there may be a problem with vision or a condition called torticollis (or "wry neck") where the head turns or tilts in one direction and prefers not to look at the other side. it may also be that the baby prefers looking at something or someone on the opposite side and not at the object. if you have concerns be sure to contact your pediatrician right away in case an evaluation or treatment is needed otherwise mention the situation at your next appointment. .
why would my 8-1/2 month old baby only look to one side when i drop a toy but not the other?