The present study was undertaken to determine the normal values of the intercanthal distance, biocular distance, interpupillary distance and palpebral fissure length and height for the Turkish population. These measurements were taken from 500 (272 females, 228 males) healthy young adults aged 18-25 years. The measurements were made with a millimetric compass. The mean values of intercanthal distance, biocular distance, interpupillary distance, right palpebral fissure length and palpebral fissure height were 30.7+/-3.0 mm, 95.9+/-6.0 mm, 63.9+/-3.6 mm, 32.6+/-2.4 mm and 10.3+/-1.6 mm respectively in males. In females the equivalent values were 30.0+/-2.6 mm, 92.0+/-5.4 mm, 60.8+/-3.2 mm, 31.0+/-2.4 mm and 10.4+/-1.5 mm respectively.