AIMS To study binocular function in patients with longstanding asymmetric keratoconus. METHODS In 20 adult patients with longstanding asymmetric keratoconus managed with a scleral contact lens a full clinical and orthoptic assessment was performed with and without the scleral contact lens in the poorer eye. RESULTS All 20 patients had a corrected acuity of at least 6/9 in their better eye. ...

This paper is concerned with the dynamic analysis of flexible, nonlinear multibody systems undergoing intermittent contacts. Contact is assumed to be of finite duration, and the forces acting between the contacting bodies which can be either rigid or deformable are explicitly computed during simulation. The modeling of contact consists of three parts: a number of holonomic constraints that defi...

This paper deals with the formulation of a necessary optimality condition for a topology optimization problem for an elastic contact problem with Tresca friction. In the paper a quasistatic contact model is considered, rather than a stationary one used in the literature. The functional approximating the normal contact stress is chosen as the shape functional. The aim of the topology optimizatio...

IMPORTANCE The efficacy and safety of primary intraocular lens (IOL) implantation during early infancy is unknown. OBJECTIVE To compare the visual outcomes of patients optically corrected with contact lenses vs IOLs following unilateral cataract surgery during early infancy. DESIGN, SETTING, AND PARTICIPANTS The Infant Aphakia Treatment Study is a randomized clinical trial with 5 years of f...

We consider a thermoelastic contact problem for several bodies under the conditions of unilateral mechanical through nonlinear Winkler surface layers and imperfect thermal contact. obtain weak formulation this in form system formed by variational equation inequality also an alternative linear equations. To solve equations thermomechanical problem, we develop parallel iterative Robin-type domain...

The increased number of women participating in sports has led to a higher knee injury rate in women compared with men. Among these injuries, those occurring to the ACL are commonly observed during landing maneuvers. The purpose of this study was to determine gender differences in landing strategies during unilateral and bilateral landings. Sixteen male and 17 female recreational athletes were r...