The realism of eye movements in sex dolls has significantly improved with technological advancements. Many dolls now feature eyes made with high-quality materials that can simulate some natural movements, such as blinking or slight shifts in focus. These movements are often achieved through mechanical systems, tiny motors, or servo mechanisms embedded within the eye sockets, controlled by internal systems or remote controls.

While the eye movements in most current models are limited compared to human autonomy, they can mimic natural reactions like blinking or following movement subtly. Some high-end dolls incorporate artificial intelligence or programmable features that allow the eyes to change expressions, look in different directions, or even simulate eye contact, adding depth to interactions. However, complete naturalistic eye movement akin to real human eye mobility remains a complex challenge due to the intricate coordination required.

Overall, the eye movement capabilities in modern sex dolls have reached impressive levels of realism, significantly enhancing the lifelike appearance and emotional connection. Although not yet fully autonomous, these features contribute greatly to the immersive experience, making each interaction more authentic and engaging.