Publications by authors named "Zachary M Robertson"
Aim: To assess diabetic macular edema (DME) progression during the early phases of the COVID-19 pandemic, when severe societal restrictions raised the concern of possible deterioration of health in patients with systemic conditions, particularly those requiring frequent office visits.
Methods: This is a multicenter retrospective chart review of 370 patients (724 eyes) with an established diagnosis of DME seen on 3 separate visits between January 2019 and July 2021. Period 1 was January 2019 to February 2020 (considered pre-COVID-19), period 2 was March 2020 to December 2020 (considered the height of the pandemic; highest level of pandemic-related clinical and societal regulations) and period 3 was January 2021 to July 2021 (re-adjustment to the new "pandemic norms").
Purpose: To compare the outcomes of primary uncomplicated rhegmatogenous retinal detachment (RRD) repair using pars plana vitrectomy (PPV), scleral buckling (SB), or combined scleral buckling with vitrectomy (SB/PPV).
Patients And Methods: Single-institution, retrospective, observational study of 179 patients with primary RRD managed at a large academic hospital system. We excluded patients with less than 6 months of follow-up, previous vitrectomy or buckle, giant retinal tears, aphakia, recurrent forms of RRD, or extensive proliferative vitreoretinopathy (Grade C or worse) documented on exam or requiring membrane peel.
Purpose: To identify barriers to compliance in pediatric noninfectious uveitis, and to examine its association with achieving steroid-free remission.
Methods: A retrospective analysis was performed on pediatric patients with noninfectious uveitis on immunomodulatory therapy treated at the University of Texas Southwestern Medical School and Children's Medical Center (Dallas, TX) between September 2015 and March 2017. Compliance barriers were identified and rates of achieving steroid-free remission were calculated.
Vitreoretinal lymphoma, secondary to non-CNS systemic lymphoma, masquerading as an infectious retinitis.
Am J Ophthalmol Case Rep
December 2019
Purpose: To report an atypical case of vitreoretinal lymphoma, secondary to non-central nervous system (non-CNS) systemic lymphoma, masquerading as an infectious retinitis.
Observations: A 76-year-old female with a history of cecal diffuse large B-cell lymphoma with two prior occurrences of posterior segment ocular involvement presented with a complaint of blurry vision in the right eye. Exam findings were significant for large areas of retinal whitening and retinal hemorrhages in the absence of choroidal lesions or significant vitritis.
Purpose: To evaluate risk factors for sclerotomy leakage in 23-gauge sutureless pars plana vitrectomy in 219 patients.
Methods: Nested case-control study involving 48 patients with wound leaks (visible on-table sclerotomy leakage requiring sutures) and 171 control subjects without wound leaks. Patients received either a conventional sclerotomy incision at 45°, which was then changed to 90° midincision, or an extremely oblique sclerotomy incision (OSI) at 10°, which was then changed to 30° midincision.
Purpose: To determine whether Streptococcus pneumoniae capsule was necessary for pathogenesis of pneumococcal endophthalmitis.
Methods: An isogenic capsule-deficient strain was created using homologous recombination. New Zealand White rabbits were injected intravitreously with 10(2) colony-forming units (CFU) of the parent strain or the capsule mutant.
Intraocular pressure changes following Descemet's stripping with endothelial keratoplasty.
Graefes Arch Clin Exp Ophthalmol
February 2010
Purpose: To evaluate the postoperative changes in intraocular pressure (IOP) following Descemet's stripping with endothelial keratoplasty (DSEK).
Methods: A retrospective chart review of 45 eyes that underwent DSEK for the treatment of corneal edema induced by aphakic or pseudophakic bullous keratopathy (ABK/PBK) and Fuchs' endothelial dystrophy. A mean baseline IOP was obtained at three different preoperative visits using Tono-Pen XL tonometer.