Dynamic buckling and fragmentation in brittle rods [PDF]
We present experiments on the dynamic buckling and fragmentation of slender rods axially impacted by a projectile. By combining the results of Saint-Venant and elastic beam theory, we derive a preferred wavelength lambda for the buckling instability, and experimentally verify the resulting scaling law for a range of materials including teflon, dry ...
arxiv +1 more source
Arterial occlusion after scleral buckling
We present a report of a young man with bilateral retinal dialyses in whom surgery, in the form of scleral buckling, was initially performed only to one eye. Post-operatively, he developed features of combined central retinal and distal choroidal artery occlusions in the operated eye.
Aslam, SA+3 more
openaire +4 more sources
ObjectiveAccurate scleral marking of retinal breaks is essential for successful scleral buckling. This study aimed to investigate the use of wide-field fundus images obtained with an Optos for preoperative estimation of the distance from the limbus to ...
Keijiro Ishikawa+5 more
doaj +1 more source
Os autores descrevem uma rara complicação de cirurgia de retinopexia com uso de fio de sutura de cerclagem de Arruga, evoluindo com erosão escleral e perfuração intra-ocular .The authors relate an uncommon complication of retinopexy with encircling ...
Eduardo de França Damasceno+3 more
doaj +1 more source
Primary Repair of Moderate Severity Rhegmatogenous Retinal Detachment: A Critical Decision-Making Algorithm [PDF]
We reviewed all the available data regarding the current management of non-complex rhegmatogenous retinal detachment and aimed to propose a new decision-making algorithm aimed to improve the single surgery success rate for mid-severity rhegmatogenous ...
DALMA-WEISZHAUSZ, Jose+8 more
core +1 more source
Relaxing retinotomies and retinectomies in the management of retinal detachment with severe proliferative vitreoretinopathy (PVR) [PDF]
Relaxing retinotomies and retinectomies are used in the presence of retinal shortening resulting from retinal incarceration or fibrous proliferation and contraction that prevents contact of the retina with the retinal pigment epithelium.
Shalaby, Khaled AG
core +3 more sources
Laser Scleral Buckling for Retinal Reattachment
The holmium:yttrium aluminum garnet (Ho:YAG) laser produces infrared light that is absorbed inside scleral tissues, which increases local temperature, thereby shrinking collagen and inducing a buckle effect. Scleral indentation was induced in ten cadaver eyes by shrinkage of scleral collagen fibers by using a pulsed solid-state Ho:YAG (2.1-microns ...
Jean-Marie A. Parel+3 more
openaire +3 more sources
Outcomes of 23-gauge pars plana vitrectomy in combined scleral buckling and vitrectomy for complex rhegmatogenous retinal detachments [PDF]
Rhegmatogenous retinal detachments associated with proliferative vitreoretinopathy, giant retinal tears, ocular trauma, proliferative diabetic retinopathy, or necrotizing retinitis are considered more complex than those without these factors.
Foster, Robert E.+4 more
core +1 more source
Updated chandelier illumination-assisted scleral buckling using 3D visualization system
Mihori Kita, Mami Kusaka, Hiroshi Yamada, Sachiyo Hama Department of Ophthalmology, National Organization Kyoto Medical Center, Kyoto, JapanCorrespondence: Mihori KitaDepartment of Ophthalmology, National Organization Kyoto Medical Center, 1-1 Mukouhata ...
Kita M, Kusaka M, Yamada H, Hama S
doaj
How do the successive buckling events affect a galaxy bar and stellar disk? Potential Observable Signatures For Spotting the Buckling Action -- I [PDF]
Until now, observations have caught up only a handful of galaxies in ongoing buckling action. Interestingly, N-body simulations over the past several decades show that almost every bar buckles or vertically thickens as soon as it reaches its peak strength during its evolution and leads to box$/$ peanut$/$ x (BPX) shapes.
arxiv +1 more source