Purpose <p>To establish gestational age-specific nomograms for fetal eyeball anteroposterior (AP) diameter and intraocular measurements (lens AP diameter, vitreous body AP diameter).</p> Methods <p>A retrospective study was conducted and included singleton pregnancies without prenatal or postnatal structural abnormalities. Three-dimensional ultrasound volumes of the fetal face acquired between 12 and 41 weeks’ gestation were analyzed using multiplanar reformatting to obtain a standardized axial orbital plane. Right and left eyeball, lens, and vitreous body AP diameters were measured. Gestational age-specific reference ranges were generated using percentile distributions. Quadratic regression was used to assess associations with gestational age and biparietal diameter.</p> Results <p>Of 608 volumes screened, 588 were included. Complete assessment of all parameters was available in 577 (98.1%). All ocular and intraocular measurements increased with gestational age (all <i>p</i> &lt; 0.001). Quadratic regression demonstrated associations between gestational age and eyeball AP diameter (right R² = 0.80; left R² = 0.79), lens AP diameter (right R² = 0.44; left R² = 0.42), and vitreous body AP diameter (right R² = 0.80; left R² = 0.81). Similar associations were observed with biparietal diameter (all <i>p</i> &lt; 0.001). Gestational age-specific nomograms and percentile tables are presented.</p> Conclusions <p>Gestational age-specific nomograms for fetal eyeball depth and intraocular measurements are provided and may support objective prenatal assessment of fetal ocular growth.</p>