Publications by authors named "Karen Wai"

Objective: Evaluate the risk of age-related macular degeneration (AMD) development and progression in individuals with diagnosed obstructive sleep apnea (OSA).

Design: Retrospective cohort study.

Subjects: 60,652 and 1,173,723 individuals with OSA or not, respectively, were included in the study before propensity score matching (PSM).

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Article Synopsis
  • This study investigates how well resident ophthalmologists can identify neovascularization (NV) in patients with proliferative diabetic retinopathy (PDR) using two imaging techniques: widefield swept-source optical coherence tomography angiography (SS-OCTA) and fluorescein angiography (FA).
  • The study involved twelve resident physicians who assessed a randomized set of images from both techniques to identify NV.
  • Findings indicate that while the resident physicians identified NV correctly 75.6% of the time with FA and 90.7% with SS-OCTA's vitreoretinal interface slab, there was no significant difference in detection rates across the imaging methods, suggesting SS-OCTA is a viable option for detecting NV in PDR.
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Importance: Curcuma-based nutritional supplements (CBNS) are natural anti-inflammatory and antioxidant agents that may confer benefits against age-related macular degeneration (AMD).

Objective: To examine the association between the use of CBNS and the risk of development or progression of AMD.

Design, Setting, And Participants: This was a retrospective cohort study with data collection in June of 2024.

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Purpose: Patients with Crohn's disease (CD) and subsequent ocular manifestations may have worse outcomes when compared to matched patients with CD without ocular disease.

Methods: In this retrospective cohort study, an aggregated electronic health records research network, TriNetX (Cambridge, MA, USA), was used to identify patients diagnosed with CD stratified by the presence or absence of ocular involvement with at least 1 year of follow-up. Propensity score matching (PSM) was performed to control for baseline demographics and medical comorbidities.

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Purpose: Assessing immune-related ocular toxicities from immune checkpoint inhibitors (ICIs) is crucial, though rare. This study, utilizing real-world data, examines the occurrence of ophthalmic immune-related adverse events (irAEs) after ICI treatment and their impact on overall survival.

Design: A retrospective cohort study.

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We present a complicated case of mixed mechanism glaucoma in the setting of failed corneal transplant and aphakia. The patient was a 54-year old male with HLA B27 uveitis and prior open globe injury. He was left aphakic after cataract extraction and had a subsequent corneal transplant for bullous keratopathy.

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Purpose: Conversion to neovascular disease in patients with non-neovascular age-related macular degeneration (AMD) initiated on direct oral anticoagulants (DOACs) compared with matched patients treated with warfarin.

Design: Retrospective cohort study.

Participants: The study included 20 300 patients and 13 387 patients with non-neovascular AMD initiated on DOACs or warfarin, respectively, before propensity score matching (PSM).

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Purpose: To evaluate the risk of diabetic retinopathy progression and systemic vascular events, including death, in patients with nonproliferative diabetic retinopathy (NPDR) with obstructive sleep apnea (OSA).

Design: Retrospective cohort study.

Methods: Electronic chart query using TriNetX, an electronic health records network comprising data from over 124 million patients.

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Purpose: We aim to present a case of disseminated fusariosis that occurred in the setting of immunosuppression and presented with bilateral endogenous endophthalmitis, along with a literature review of endophthalmitis, highlighting management strategies.

Observation: A 70-year-old male with acute myeloid leukemia who had recently undergone a bone marrow transplant noted bilateral floaters and decreased vision. He was found to have bilateral endophthalmitis, with subsequent evidence of fungemia and fusariosis in his skin and joints.

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Background And Objective: The Food and Drug Administration recently approved treatments of geographic atrophy (GA). Our study aims to quantify the time for a lesion to reach the central fovea based on reduction of GA growth rates from therapeutics compared to the natural history.

Patients And Methods: A previously published study calculates local border expansion rate of GA lesions at varying retinal eccentricities.

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Importance: The Diabetic Retinopathy Clinical Research Network Protocol S suggested that vitrectomy for vitreous hemorrhage (VH) or tractional retinal detachment (TRD) was more common among eyes assigned initially to panretinal photocoagulation (PRP) vs anti-vascular endothelial growth factor (anti-VEGF) for proliferative diabetic retinopathy (PDR). These clinical implications warrant further evaluation in the clinical practice setting.

Objective: To explore outcomes of PDR treated with PRP monotherapy compared with matched patients treated with anti-VEGF monotherapy.

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Purpose: To examine the effects of glucagon-like peptide-1 receptor (GLP-1) agonists compared to SGLT-2 inhibitors on diabetic retinopathy.

Design: Retrospective clinical cohort study using TriNetX, a federated electronic health records network comprising multiple healthcare organizations.

Methods: Patients with an International Classification of Diseases, Tenth Revision (ICD-10) code of nonproliferative diabetic retinopathy (PDR) and monotherapy treatment, excluding insulin, with GLP-1 agonists or SGLT-2 inhibitors.

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Alport syndrome is characterized by type IV collagen network disruptions leading to renal, auditory, and ocular manifestations. This case report details a 24-year-old man with Alport syndrome who developed a rhegmatogenous retinal detachment following macular hole repair. The patient underwent a successful vitrectomy and internal limiting membrane peel for macular hole repair but returned with vision loss due to retinal detachment five weeks later, which necessitated a combined scleral buckle and vitrectomy.

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Purpose: To evaluate associations between ocular manifestations of Marfan syndrome and cardiovascular complications.

Design: Retrospective cohort study.

Methods: The TriNetX Analytics platform, a federated health research network of aggregated deidentified electronic health record data of more than 119 million patients, was used to identify patients diagnosed with Marfan syndrome.

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Purpose: To assess an association between cutaneous keloids, hypertrophic scarring, and fibrosis (KHF) and risk of postoperative proliferative vitreoretinopathy (PVR) after rhegmatogenous retinal detachment (RRD) repair.

Design: Retrospective, population-based cohort study.

Participants: Patients aged ≥ 18 years who underwent initial retinal detachment (RD) repair with pars plana vitrectomy with or without scleral buckle (SB) (Current Procedural Terminology [CPT] 67108), pneumatic retinopexy (67110), and primary SB (67107) from January 1, 2003, to March 1, 2023.

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Futibatinib is an irreversible inhibitor of fibroblast growth factor receptors and is currently the subject of phase II clinical trials for the treatment of metastatic carcinomas. We report a case of a 59-year-old woman with metastatic malignant breast cancer who developed acute symptomatic subretinal fluid (SRF) accumulation after two weeks of futibatinib therapy. The SRF resolved within two weeks after futibatinib cessation.

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Importance: Patients with retinal artery occlusions (RAOs) are recommended to have emergent stroke workup, although the true risk of death and subsequent vascular events post-RAO is not clear.

Objective: To determine short-term and long-term rates of stroke, myocardial infarction (MI), and death in patients after RAO compared with a control cohort.

Design, Setting, And Participants: This retrospective cohort study used aggregated electronic health records from January 1, 2003, through April 14, 2023, from TriNetX, a network with data from more than 111 million patients.

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A critical challenge in translational research is establishing a viable and efficient interface between patient care in the operating room (OR) and the research laboratory. Here, we developed a protocol for acquiring high-quality liquid biopsies for molecular analyses from the aqueous humor and the vitreous from patients undergoing eye surgery. In this workflow, a Mobile Operating Room Lab Interface (MORLI) cart equipped with a computer, a barcode scanner, and lab instruments, including onboard cold storage, is used to obtain and archive human biological samples.

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Purpose: To examine rates of stroke, myocardial infarction (MI), deep vein thrombosis (DVT), pulmonary embolism (PE), and death in patients after retinal vein occlusion (RVO) compared to controls.

Design: Retrospective cohort study.

Methods: An aggregated electronic health records research network, TriNetX, was used to identify patients with diagnosis of RVO and a control group of patients with cataract.

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