Publications by authors named "R Shemesh"

Objective: Pigmentary posterior vitreous detachment (PVD), referred to as "black PVD," is a rare entity describing PVD along with pigment dispersion in the vitreous. There are a few case reports describing pigmentary PVD, yet the association between pigmentary PVD and uveal and optic disc tumors was not described before. The aim of this study was to report the clinical features of patients with pigmentary PVD associated with these tumors.

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Purpose: To assess retinopathy of prematurity (ROP) practice patterns during the coronavirus (COVID-19) pandemic.

Methods: A survey on ROP practice patterns during the COVID-19 pandemic was sent to the American Academy of Ophthalmic Executives, the International Pediatric Ophthalmology and Strabismus Council members, and to various national societies on May 19, 2020. The survey closed on the 31st of June 2020.

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Article Synopsis
  • - The study aimed to assess how diffusion-weighted imaging (DWI) and apparent diffusion coefficient (ADC) can differentiate between inflammation and malignant lymphoma of the lacrimal gland.
  • - Researchers analyzed 28 patients over a 10-year period, finding that 61% had inflammation (dacryoadenitis) while 21% had lymphoma, with ADC values being significantly lower for lymphoma cases compared to inflammation.
  • - The results indicate that DWI can be a valuable imaging tool to help distinguish between these two conditions in the lacrimal gland.
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This study presents a comparative analysis of the publications of students participating in the Arrow Research Program in comparison to those of attending physicians and researchers at the same tertiary medical center in order to assess the impact of the Arrow Research Program on the students' scientific achievements. The study encompassed 90 Arrow Research Program students who were involved in the program at the Sheba Medical Center between 2019 and 2021. As a comparison group, 2082 attending physicians and researchers affiliated with the same center during the same period of time were considered.

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Article Synopsis
  • The study aimed to analyze high-risk histopathological features in eyes with retinoblastoma (RB) after enucleation and compare patient outcomes globally.
  • A total of 1,426 RB cases were reviewed, revealing significant differences in histopathological features across continents, with Asia showing the highest rates of massive choroidal invasion and optic nerve invasion.
  • The findings indicated that patients from South America and Asia faced greater risks of tumor recurrence, systemic metastasis, and mortality compared to those from Australia, Europe, and North America.
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