PURPOSE To compare the anatomic and visual outcomes achieved by scleral buckling and primary vitrectomy for the repair of macula-off rhegmatogenous retinal detachment. METHODS The records were reviewed for a consecutive series of 167 patients (167 eyes) who were initially treated with scleral buckling or pars plana vitrectomy for primary macula-off retinal detachment. Patients were treated be...

We investigate the effect of defect geometry in dictating sensitivity critical buckling conditions spherical shells under external pressure loading. Specifically, we perform a comparative study between containing dimpled (inward) versus bumpy (outward) Gaussian defects. The former has become standard shape many recent shell-buckling studies, whereas latter remained mostly unexplored. employ fin...

It is of great significance to understand the underlying mechanism of buckling-driven wrinkles in graphene monolayer due to its applications in nanoelectromechanical systems (NEMS). In previous macroscopic studies based on continuum theory, the chirality-dependent buckling in graphene monolayer is considered as neglectable. However, we found that the growth of buckling-driven wrinkles in graphe...

A concise method for following the evolving geometry of a moving surface using Lagrangian coordinates is described. All computations can be done in the fixed geometry of the initial surface despite the evolving complexity of the moving surface. The method is applied to three problems in nonlinear elasticity: the bulging of a thin plate under pressure (the original motivation for Föppl-von Karma...

OBJECTIVE To study the outcome of conventional scleral buckling procedures performed for primary rhegmatogenous retinal detachment. METHODS This prospective study was conducted at Khyber Institute of Ophthalmic Medical Sciences, Hayatabad Medical Complex, Peshawar, Pakistan from 02-08-2008 to 29-04-2009. The outcome of fifty-six consecutive cases, operated in nine months duration, for primary...