Computational simulation of scleral buckling surgery for rhegmatogenous retinal detachment: on the effect of the band size on the myopization
Fecha
2016Autor
Versión
Acceso abierto / Sarbide irekia
Tipo
Artículo / Artikulua
Versión
Versión publicada / Argitaratu den bertsioa
Impacto
|
10.1155/2016/3578617
Resumen
A finite element model (FE) of the eye including cornea, sclera, crystalline lens, and ciliary body was created to analyze the
influence of the silicone encircling bandwidth and the tightness degree on the myopia induced by scleral buckling (SB) procedure
for rhegmatogenous retinal detachment. Intraocular pressure (IOP) was applied to the reference geometry of the FE model and
then SB surgery ...
[++]
A finite element model (FE) of the eye including cornea, sclera, crystalline lens, and ciliary body was created to analyze the
influence of the silicone encircling bandwidth and the tightness degree on the myopia induced by scleral buckling (SB) procedure
for rhegmatogenous retinal detachment. Intraocular pressure (IOP) was applied to the reference geometry of the FE model and
then SB surgery was simulated with encircling bandwidths of 1, 2, and 2.5 mm. Different levels of tightening and three values of
IOP were applied.The anterior segment resulted as unaffected by the surgery. The highest value of Cauchy stress appeared in the
surroundings of the implant, whereas no increment of stress was observed either in anterior segment or in the optic nerve head.
The initial IOP did not appear to play any role in the induced myopia.The wider the band, the greater the induced myopia: 0.44,
0.88, and 1.07 diopters (D) for the 1, 2, and 2.5mm bandwidth, respectively.Therefore, patients become more myopic with a wider
encircling element. The proposed simulations allow determining the effect of the bandwidth or the tightness degree on the axial
lengthening, thus predicting the myopic increment caused by the encircling surgery. [--]
Materias
Scleral buckling surgery,
Rhegmatogenous retinal detachment,
Intraocular pressure,
Myopia,
Band size
Editor
Hindawi
Publicado en
Journal of Ophthalmology, Volume 2016, Article ID 3578617, 10 pages
Departamento
Universidad Pública de Navarra. Departamento de Ingeniería Mecánica, Energética y de Materiales /
Nafarroako Unibertsitate Publikoa. Mekanika, Energetika eta Materialen Ingeniaritza Saila
Versión del editor
Entidades Financiadoras
The authors wish to acknowledge the research support by
the Spanish Ministry of Education and Science Research
Project DPI2014-54981R, the CIBER initiative, Instituto de
Salud Carlos III (ISCIII) Platformfor Biological Tissue Characterization
of the Centro de Investigación Biomédica en Red
en Bioingeniería, Biomateriales y Nanomedicina (CIBERBBN),
and the Department of Industry and Innovation
(Government of Aragón) through the research group Grant
T88 (Fondo Social Europeo).