نتایج جستجو برای: iris surgery
تعداد نتایج: 352761 فیلتر نتایج به سال:
Introduction: The non-acute variants of appendicitis include recurrent, subacute, and chronic appendicitis, which are rarely diagnosed remain subjects case reports. diagnosis is complex based on history, clinical examination, an ultrasonogram or computed tomography. Unlike the acute variety, a surgical emergency, these cases do not require immediate surgery. In present case, patient had pain in...
During cataract surgery the clouded lens is broken up by phacoemulsification. The iris can become highly mobile and could be entrained phacoemulsification probe, under a condition known as intraoperative floppy syndrome (IFIS). In this study we explore mechanism of IFIS during phacoemulsification-based using fluid-structure interaction (FSI) simulations. As first its kind, developed simplified ...
Iris recognition is one of the most reliable methods for identification. In general, itconsists of image acquisition, iris segmentation, feature extraction and matching. Among them, iris segmentation has an important role on the performance of any iris recognition system. Eyes nonlinear movement, occlusion, and specular reflection are main challenges for any iris segmentation method. In thi...
Iris recognition is one of the most reliable methods for identification. In general, itconsists of image acquisition, iris segmentation, feature extraction and matching. Among them, iris segmentation has an important role on the performance of any iris recognition system. Eyes nonlinear movement, occlusion, and specular reflection are main challenges for any iris segmentation method. In thi...
PURPOSE To assess the safety and outcome of single-piece posterior chamber intraocular lens (PC-IOL) implantation in the ciliary sulcus following posterior capsular rupture during cataract surgery. METHODS Patients with posterior capsular rupture during cataract surgery with a single-piece acrylic IOL implanted into the ciliary sulcus were studied. Complete ocular examinations were performed ...
OBJECTIVE To collaborate with multiple centers to identify representative epidemiological, clinical, and pathologic characteristics of melanoma of the iris. This international, multicenter, Internet-assisted study in ophthalmic oncology demonstrates the collaboration among eye cancer specialists to stage and describe the clinical and pathologic characteristics of biopsy-proven melanoma of the i...
The capsule of the crystalline lens, if sufficiently present, is used as a support tissue for intraocular lens (IOL) implantation surgery performed on vitrectomized eyes. Eye trauma or iatrogenic damage during complicated cataract surgery, loss of position and zonule connections of the crystalline lens, and IOL via dislocation may cause loss of support tissue for lens capsule implantation prior...
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