The Role of Tissue Expanders in an Anophthalmic Animal Model

Distraction of the Orbit

“…In a previous study, subperiosteal tissue expansion emanating from the orbital roof has proven effective at maintaining normal orbital bone growth in the anophthalmic cat model (19). While the .. mechanism remains speculative, it was felt that actual orbital bone growth was promoted rather than simple rotation (displacement) or existing skeletal structures.…”

Orbital Development as a Function of Age in Indigenous North American Skeletons

“…Orbital growth at the sutures then ceases, synostosis occurs, and further growth of the orbit is no longer possible. Sarnat and Shanedling 3 observed orbital volumes significantly higher in rabbits who received intraocular silicone injections in 1 eye, whereas Lo et al 40 observed that cats who received larger tissue volume expander had overexpanded orbits. It appears that the functional matrix theory not only predicts the effect of growing orbital tissue volume on normal growth of the orbit but also applies to situations of accelerated orbital growth and bony growth stimulation.…”

Custom Ocular Prosthesis in Children: How Often is a Change Required?

“…(Cepela et al, 1992;Eppley et al, 1993;Heinz et al, 1998;Lo et al, 1990;Reddy et al, 1999). In a study conducted by Sarnat (1982) on "Eye and orbital size in the young and adult rabbits" it was noted that after evisceration, enucleation, or exenteration in young rabbits, there was a decelerated increase of orbital volume with growth.…”