Infant gaze tracking as a development milestone

Tracking a face or a toy with the eyes is not a simple reflex: it is a visual maturation milestone. If it is missing around 3 to 4 months, it is advisable to speak to a doctor quickly.

Doctor highlights gaze tracking in a video

On October 27, 2026, in a video published on Instagram, the account Dr Sermed Mezher draws attention to a simple milestone in infants: the act of following with the gaze. This gesture can provide useful information about vision and development, but following with the gaze is a useful milestone, not a definitive diagnosis.

How gaze tracking develops in babies

When an infant slowly follows a face, a toy, or a moving object with his eyes, his eye muscles and his brain coordinate several pieces of information at the same time. In the first months, this coordination is built gradually: the gaze can first be brief, irregular, then become more stable.

Doctors monitor gaze during checkups

That is why healthcare professionals observe particularly the eyes, eye motility and the baby's ability to fixate and follow with the gaze during follow-up examinations. This milestone is also part of the evolution of a baby's vision month by month.

Case example in the video

In the video, Dr. Mezher comments on the case of a three-month-old baby who, according to his mother, does not maintain much eye contact and does not really follow with the gaze. He also mentions an impression of movements more oriented to the right side. These elements do not allow for a remote diagnosis, but they justify not remaining alone with the doubt.