Inferolateral migration of hydrogel orbital implants in microphthalmia.
OBJECTIVE
Hydrogel spheres may be useful in treating orbital hypoplasia associated with congenital microphthalmia. The authors describe migration associated with the use of these devices.


METHODS
The authors retrospectively reviewed 5 cases in which a hydrogel orbital expander (Osmed) was implanted to treat orbital hypoplasia in pediatric patients with congenital microphthalmia (with or without previous surgery).


RESULTS
In all 5 cases, a lateral orbitotomy, conjunctiva-sparing approach was used to insert the hydrogel spheres. Two cases involved previously unoperated orbits; 3 patients had prior orbit or socket surgery. Inferolateral movement outside the desired central, deep orbital position occurred in all 5 cases. Four of 5 cases required further procedures to achieve an adequate orbital implant position.


CONCLUSIONS
Inferolateral migration may occur with hydrogel spheres implanted via a lateral orbitotomy approach in microphthalmia.
Tao
Jeremiah P
JP
Department of Ophthalmology, University of California, Irvine, California 92697, USA. j.tao@uci.edu
LeBoyer
Russell M
RM
Hetzler
Kathy
K
Ng
John D
JD
Nunery
William R
WR
D002648:Child; D002675:Child, Preschool; D005548:Foreign-Body Migration / Q000209:etiology*; D006801:Humans; D020136:Hydrogel, Polyethylene Glycol Dimethacrylate; D007223:Infant; D008297:Male; D008850:Microphthalmos / Q000601:surgery*; D009915:Orbit / Q000002:abnormalities / Q000601:surgery; D020273:Orbital Implants; D011183:Postoperative Complications; D019919:Prosthesis Implantation; D012189:Retrospective Studies; D015625:Tissue Expansion Devices
D020136:Hydrogel, Polyethylene Glycol Dimethacrylate