Multifocal Retinocytoma Associated With Intronic Acceptor Splice Site Variants in the RB1 Gene.

Retinocytomas are benign tumors that arise from mutations in the  gene. Previous research describes the appearance of retinocytomas as that of treated retinoblastoma (Rb) lesions, with characteristics such as chorioretinal atrophy, calcification, and a lack of necrosis or mitotic activity on histopathology. We present the unusual case of an asymptomatic seven-year-old girl with two independent translucent masses in the peripheral retina of the right eye (OD) and extensive intraretinal tumor and vitreous seeds.

Ocular and Systemic Risk Factors for Disease Worsening Among Patients with NPDR: Post Hoc Analysis of the PANORAMA Trial.

Purpose: Identify baseline systemic and ocular characteristics associated with nonproliferative diabetic retinopathy (NPDR) worsening, and the impact of intravitreal aflibercept injection (IAI) on these associations.

Design: Post hoc analysis of PANORAMA.

Participants: Patients with moderately severe to severe NPDR enrolled in the prospective PANORAMA phase 3 trial.

OPTICAL BLUR AFFECTS DIFFERENTLY ON AND OFF VISUAL PATHWAYS.

The human eye has a crystalline lens that focuses retinal images at the point of fixation. Outside this fixation region, images are distorted by optical blur, which increases light scatter and reduces the spatial resolution and contrast processed by neuronal pathways. The spectacle lenses that humans use for optical correction also minify or magnify the images, affecting neuronal surround suppression in visual processing.

Alkyl Quinolone Response is dampened by .

The bacterium is an opportunistic pathogen that can cause lung, skin, wound, joint, urinary tract, and eye infections. While is known to exhibit a robust competitive response towards other bacterial species, this bacterium is frequently identified in polymicrobial infections where multiple species survive. For example, in prosthetic joint infections (PJIs), can be identified along with other pathogenic bacteria including and Here we have explored the survival and behavior of such microbes and find that readily survives culturing with while other tested species do not.

Macular Outer Retinal Atrophy Following Vitrectomy and Hypotony: Two Cases.

Purpose: To characterize two cases of focal outer retinal atrophy and hypotony after vitrectomy.

Methods: Retrospective chart review of two patients' records between 2019 and 2023.

Results: Patient 1 underwent vitrectomy, epiretinal membrane peel, and cataract extraction for visually significant macular pucker.

Top-100 Highest Cited Articles on Posterior Communicating Artery Aneurysms: A Bibliometric Analysis.

Objective: The aim of this study is to evaluate the 100 most highly cited articles assessing posterior communicating artery aneurysms.

Methods: In May 2024, a comprehensive search was conducted in the Scopus database using the keyword "posterior communicating artery aneurysm" The top-100 most impactful articles were ranked by citation count and analyzed for relevant factors. Citations per year were calculated to minimize the risk of bias.

Trastuzumab-Induced Early Corneal Melt in HER2-Positive Breast Cancer: A Case Report and Review.

BACKGROUND Trastuzumab (Herceptin) is a recombinant DNA-derived humanized monoclonal antibody that the US Food and Drug Administration (FDA) approved in 1998 for metastatic human epidermal growth factor receptor 2 (HER2)-positive breast cancer therapy. It selectively binds to the extracellular domain of HER2 and mediates an antibody-dependent cellular toxicity in various tissues. Trastuzumab use alone does not typically cause aggressive ocular complications.

Factors associated with vision loss in idiopathic intracranial hypertension patients with severe papilledema.

Background/objectives: Our aim was to compare factors associated with poor versus good visual outcomes in idiopathic intracranial hypertension (IIH) patients with severe papilledema at initial presentation.

Subjects/methods: Retrospective review of consecutive IIH patients (1/1/2013-6/10/2023) with severe papilledema (Frisén grade 4-5 and/or atrophy in at least one eye); Patients were divided into "poor visual outcome" (poor visual acuity and constricted visual field in at least one eye) and "good visual outcome" (good visual acuity and only mild visual field changes in both eyes) at >6 months for medically-treated patients and >3 months follow-up for surgically-treated patients.

Results: We included 134 IIH patients with severe papilledema (70 had poor and 64 had good visual outcomes).

Vitamin a Deficiency in an Elderly Patient: A Diagnostic Challenge in the Age of AMD.

The presentation of vitamin A deficiency (VAD)-induced ocular complications can be challenging to diagnose in elderly patients, particularly due to the overlap with age-related macular degeneration (AMD) symptoms. This case report details the presentation, diagnosis, and management of an 88-year-old female with vision loss, highlighting the ocular manifestations of presumed VAD. Despite vitamin A levels being at the lower end of the normal range, the patient's symptoms and spectral domain optical coherence tomography (SD-OCT) findings suggested insufficient levels, leading to thinning of the outer nuclear layer.

Perceptual, Semantic, and Pragmatic Factors Affect the Derivation of Contrastive Inferences.

People derive contrastive inferences when interpreting adjectives (e.g., inferring that 'the short pencil' is being contrasted with a longer one).

Spontaneous Retinal Reattachment following Multiple Vitreoretinal Interventions: Case Report.

Introduction: The aim of the study was to document and analyze a rare case of spontaneous retinal reattachment in a patient after successive unsuccessful vitreoretinal surgeries and to explore potential mechanisms contributing to this unexpected outcome.

Case Presentation: A 61-year-old patient with a history of high myopia presented with a rhegmatogenous retinal detachment. After undergoing multiple vitreoretinal procedures, including pars plana vitrectomy with silicone oil tamponade, anatomical reattachment was not achieved, and the patient developed complex retinal detachment associated with myopic foveoschisis.

Longitudinal OCTA vessel density loss in macula and optic nerve head in healthy, glaucoma suspect and established glaucoma eyes.

Background/aims: To examine longitudinal optical coherence tomography angiography (OCTA) changes in macula and optic nerve head (ONH) in healthy, glaucoma suspect (GS) and primary open-angle glaucoma (POAG) eyes.

Methods: Healthy, GS and POAG eyes from Diagnostic Innovations in Glaucoma Study with ≥2 years follow-up and four visits of macular/ONH OCTA imaging were included. Rates of macular wiVD (whole-image vessel density) and ONH wiCD (whole-image capillary density) changes were calculated for each diagnosis group using join mixed-effect modelling.

Fluoroscopic Procedure-Room Scatter-Dose Reduction Using a Region-of-Interest (ROI) Attenuator.

During fluoroscopically-guided interventional (FGI) procedures, dose to the patient as well as the scatter dose to staff can be high. However, a significant dose reduction can be possible by using a region-of-interest (ROI) attenuator that reduces the x-ray intensity in the peripheral x-ray field while providing full field of view imaging. In this work, we investigated the magnitude of scatter dose reduction to staff made possible by using an ROI attenuator composed of 0.

Intrinsic dynamic shapes responses to external stimulation in the human brain.

Sensory stimulation of the brain reverberates in its recurrent neuronal networks. However, current computational models of brain activity do not separate immediate sensory responses from intrinsic recurrent dynamics. We apply a vector-autoregressive model with external input (VARX), combining the concepts of "functional connectivity" and "encoding models", to intracranial recordings in humans.

Oculomotor Contributions to Foveal Crowding.

Crowding, the phenomenon of impaired visual discrimination due to nearby objects, has been extensively studied and linked to cortical mechanisms. Traditionally, crowding has been studied extrafoveally; its underlying mechanisms in the central fovea, where acuity is highest, remain debated. While low-level oculomotor factors are not thought to play a role in crowding, this study shows that they are key factors in defining foveal crowding.

Ibrutinib for therapy of steroid-refractory chronic graft vs. host disease: A multicenter real-world analysis.

To examine activity of ibrutinib in steroid-refractory chronic GVHD (SR-cGVHD) after FDA approval, we conducted a multicenter retrospective study. Data were standardly collected (N=270 from 19 centers). Involved organs included skin (75%), eye (61%), mouth (54%), joint/fascia (47%), GI (26%), lung (27%), liver (19%), genital (7%), other (4.

Regulating the formation of Müller glia-derived progenitor cells in the retina.

We summarize recent findings in different animal models regarding the different cell-signaling pathways and gene networks that influence the reprogramming of Müller glia into proliferating, neurogenic progenitor cells in the retina. Not surprisingly, most of the cell-signaling pathways that guide the proliferation and differentiation of embryonic retinal progenitors also influence the ability of Müller glia to become proliferating Müller glia-derived progenitor cells (MGPCs). Further, the neuronal differentiation of MGPC progeny is potently inhibited by networks of neurogenesis-suppressing genes in chick and mouse models but occurs freely in zebrafish.

Keratoconus.

Keratoconus is a progressive eye disorder primarily affecting individuals in adolescence and early adulthood. The ectatic changes in the cornea cause thinning and cone-like steepening leading to irregular astigmatism and reduced vision. Keratoconus is a complex disorder with a multifaceted aetiology and pathogenesis, including genetic, environmental, biomechanical and cellular factors.