The eyes are often the first detail that conveys life and emotion. When designing eye design for a sex doll, focus on scale, depth, and the subtle variations that mimic real eyelids and gaze. Choose realistic iris colors with slight translucency around the edges to catch light in a convincing way. Proper placement matters: eyes should sit slightly inward rather than at the extreme corners, creating a natural, engaged look. Eyelashes add texture and frame the eyes; longer lashes can soften the gaze, while shorter ones read more clinical. Consider the eyelid opening, ensuring a gentle lid fold that resembles real anatomy rather than a flat surface. The expression can be controlled through head pose, eyelid tension, and the direction of the gaze. Lighting also plays a role—soft, diffused light brings out depth and color without washing out details. Subtle micro-macial shading around the eyes helps avoid a plasticky appearance. Finally, practice different looks: a calm, attentive gaze for daily use and a slightly wider, startled look for photography. With careful attention to color, texture, and alignment, the doll’s eyes become a window to a believable, lifelike presence.