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PURPOSE To evaluate porcine vitreous flow and balanced saline solution (BSS) flow rates in different vitrectomy systems. METHODS Porcine vitreous was obtained within 24 hours of slaughter. A high-speed (2 samples/s) balance, precise to 0.01 g, was used. Variable cut rates and vacuum pressures were analyzed in vitreous and BSS. The vitreous was labeled(More)
PURPOSE To report a patient with intraocular silicone oil migration into the subconjunctival space and orbit through an Ahmed glaucoma valve implant. METHODS Observational case report. A 29-year-old female with diabetes mellitus and proliferative diabetic retinopathy underwent three left eye pars plana vitrectomies and ultimately intraocular silicone oil(More)
A clinicopathologic report of late-onset bacterial endophthalmitis 4 years after implantation of a Baerveldt drainage implant is described. An 80-year-old woman with glaucoma presented 8 years after tube shunt implantation with clinical endophthalmitis. During surgical removal of the implant, a small conjunctival buttonhole caused by the suture securing the(More)
PURPOSE To evaluate the safety and efficacy of 25-gauge instrumentation for a variety of vitreoretinal conditions on previously nonvitrectomized eyes. DESIGN Single-center, retrospective, interventional case series. PARTICIPANTS One-hundred forty eyes of 140 patients were evaluated at the Doheny Retina Institute from July 2002 to July 2003. (More)
The objective of the present study was to test the hypothesis that the fracture strength of calcium hydroxide and mineral trioxide aggregate (MTA)-filled immature teeth decreased over time. Immature mandibular incisors from sheep were extracted and the pulps were extirpated using an apical approach with a barbed broach, and the teeth were divided into three(More)
AIMS To evaluate the effect of switching to bevacizumab or ranibizumab after developing tachyphylaxis during anti-vascular endothelial growth factor (VEGF) therapy for choroidal neovascularisation (CNV). METHODS The authors reviewed the records of all patients who received both ranibizumab and bevacizumab for treatment of CNV to identify those who(More)
PURPOSE We reviewed the clinical and histopathologic features of 33 intraocular tissue biopsy specimens from 32 patients and assessed the value of retinal and chorioretinal biopsies performed in patients with intraocular inflammation. METHODS Twenty-four endoretinal biopsies and nine chorioretinal or choroidal biopsies were performed. On the basis of(More)
OBJECTIVE To report the occurrence of rifabutin-associated hypopyon uveitis in human immunodeficiency virus (HIV)-negative immunocompetent individuals. DESIGN Retrospective case series. PARTICIPANTS Three HIV-negative subjects on rifabutin and clarithromycin for Mycobacterium avium complex infections with hypopyon uveitis are described. One subject was(More)
Subretinal neovascular membranes cause late visual loss and are important determinants of final visual acuity in patients with Vogt-Koyanagi-Harada syndrome. The purpose of this study was to determine the prevalence and risk factors associated with the development of subretinal neovascular membranes in Vogt-Koyanagi-Harada syndrome. We reviewed the charts(More)