Eye Size at Birth in Prosimian Primates: Life History Correlates and Growth Patterns
Figure 1
Eye measurements were taken by inserting a small gauge needle through the stalk of the optic nerve, as shown in O. crassicaudatus (1a).
Using a syringe, the eyes were then injected with 10% buffered formalin until the external wall was smoothed of all wrinkles and the eye resisted further volumetric expansion. 1b) microCT reconstruction of perinatal Tarsius syrichta, showing the orbital aperture diameter measurement (dashed line), which was the maximum diameter in the parasagittal plane. c, d) Fetal slender loris (L. tardigradus), showing large extraorbital portion of the eye (c), as inferred by comparison to micro CT reconstruction of the same specimen (d). The frontal (F) and bone has an expanded orbital surface. M, maxilla; P, parietal; Z, zygoma. Ruler for 1a and 1c is in mm.