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Advances in materials research related to orbital reconstruction: A review.

Orbital injuries or defects caused by various reasons are quite common, such as violent trauma or tumors. If the damaged orbits are not treated in a timely manner and the normal orbital structure cannot be restored, it may lead to ocular nerve injury, embedding or protrusion of orbital contents, and complications such as enophthalmos, diplopia, and eye movement disorders. Therefore, it is particularly important to repair orbital injuries or defects and reconstruct the normal structure of the orbit. Currently, there are various types of implants applied to reconstruct the orbit, which can be ca…

[Rhinogenic orbital complications in children of the first year of life].

OBJECTIVE: To study the frequency of occurrence, peculiarities of course and treatment of orbital complications of sinusitis in children of the first year of life with rhinogenic orbital complications. MATERIAL AND METHODS: A retrospective analysis of treatment of 74 patients of the first year of life (mean age 8.9±3.0 months) hospitalized in the department of otorhinolaryngology of the Morozovskaya Children's City Clinical Hospital with rhinogenic orbital complications For the period from 01.01.2019 to 31.06.2024 was carried out. RESULTS: Non purulent orbital complications of sinusitis(I an…

Evaluation of the Imaging Characteristics of Rhino-Orbital Cerebral Mucormycosis.

BACKGROUND: Mucormycosis is a fungal infection with diverse clinical manifestations, the most common of which, i.e., the classical form of rhino-orbital cerebral mucormycosis (ROCM), has had a significant prevalence among patients recovered from COVID-19. We aimed to investigate the findings of ROCM imaging recorded at Imam Khomeini Hospital in Ahvaz, Iran, in 2022. METHODS: This retrospective study reviewed the files of patients definitively diagnosed with mucormycosis and COVID-19. Imaging procedures performed on patients included non-contrast CT scans (CT imaging protocol: from vertex to m…

Treatment Outcomes of Canine Orbital Meningiomas in Seven Cases.

Although intracranial and spinal cord meningioma prognoses have been reported, few studies have evaluated the outcomes and prognoses of orbital and optic nerve meningiomas in dogs. We aimed to evaluate the outcomes of canine orbital meningiomas. The seven dogs included were cytologically or histopathologically diagnosed with meningiomas. Four underwent first-line surgery; three received postoperative radiation therapy. The remaining three underwent first-line radiation therapy; however, 372 days after radiation therapy, one dog underwent surgery as the lesion progressed in size. Five dogs unde…

Herpes Zoster Ophthalmicus Complicated by Orbital Apex Syndrome.

A 63-year-old male with type 2 diabetes developed herpes zoster ophthalmicus (HZO), initially presenting with a left-sided headache and eyelid itching. He was misdiagnosed with cluster headache but later returned with a vesicular rash, prompting treatment with IV acyclovir. He later exhibited ptosis, diplopia, and vision loss in the left eye. Examination revealed proptosis, ophthalmoplegia, RAPD, and corneal anesthesia. MRI revealed enhancement of the left extraocular muscles and optic nerve sheath, consistent with orbital apex syndrome (OAS). Lumbar puncture confirmed varicella zoster virus i…

Трансорбитальная сонография оптического нерва в множестве склероза.

ОКРУЖАЮЩАЯ СРЕДА: Трансорбитальная сонография (ТОС) стала неинвазивным инструментом для обнаружения повреждения оптического нерва путем измерения диаметра оптического нерва (ОНД) и диаметра оптического нерва (ОНСД). ЦЕЛЬ: Данное исследование было направлено на оценку ОНД, ОНСД и их соотношения у пациентов с MS и здоровым контролем, а также на изучение их потенциальных связей с клиническими и параклиническими параметрами. МЕТОДЫ: В этом сравнительном перекрестном исследовании (январь 2022 года -- сентябрь 2022 года) мы зачислили взрослых (≥ 18 лет) пациентов с MS, диагностированных на основе пе

Совпадение в аннотации оригинала
BACKGROUND: Trans-orbital sonography (TOS) has emerged as a non-invasive tool for detecting optic nerve damage by measuring optic nerve diameter (OND) and optic nerve sheath diameter (ONSD). OBJECTIVE: This study aimed to assess OND, ONSD, and their ratio in patients with MS and healthy controls, and to explore their potential associations with clinical and…

Orbital Electrowetting-on-Dielectric for Droplet Manipulation on Superhydrophobic Surfaces.

Electrowetting-on-dielectric (EWOD), recognized as the most successful electrical droplet actuation method, is essential in diverse applications, ranging from thermal management to microfluidics and water harvesting. Despite significant advances, it remains challenging to achieve repeatability, high speed, and simple circuitry in EWOD-based droplet manipulation on superhydrophobic surfaces. Moreover, its efficient operation typically requires electrode arrays and sophisticated circuit control. Here, a newly observed droplet manipulation phenomenon on superhydrophobic surfaces with orbital EWOD…

Characteristics of coexisting attractors and ghost orbiting in an optomechanical microresonator.

We explore the nonlinear interactions of an optomechanical microresonator driven by two external optical signals. Optical whispering-gallery waves are coupled to acoustic surface waves of a fused silica medium in the equatorial plane of a generic microresonator. The system exhibits coexisting attractors whose behaviors include limit cycles, steady states, tori, quasi-chaos, and fully developed chaos with ghost orbits of a known attractor. Bifurcation diagrams demonstrate the existence of self-similarity, periodic windows, and coexisting attractors and show high-density lines within chaos that …

Research progress of orbital fat in histology and cytology: A review.

Orbital fat is an adipose tissue located behind orbital septum and originates from mesoderm and neural crest in ectoderm. It has been found that the histologic structure of orbital fat is different from subcutaneous and visceral fat. In addition, the regeneration and anti-inflammatory ability of stem cells derived from orbital fat have attracted much attention in recent years. This paper reviews the recent research progress on orbital fat, including its structure, origin, histological characteristics, and related stem cells.

Orbital preservation in the treatment of acute invasive fungal sinusitis.

Acute invasive fungal sinusitis (AIFS) is an aggressive disease with significant mortality and morbidity. Surgical debridement is a mainstay of treatment. However, orbital involvement may limit its efficacy and is an independent risk factor for mortality. Traditionally, orbital exenteration has been utilized in cases with orbital invasion and ophthalmoplegia or vision loss. Retrobulbar liposomal amphotericin B injection may improve disease control and has the potential to spare the morbidity associated with exenteration. In this video article, we document the use of serial endonasal debridemen…

Enhancing Rashba Spin-Splitting Strength by Orbital Hybridization.

A Rashba spin-splitting state with spin-momentum locking enables the charge-spin interconversion known as the Rashba effect, induced by the interplay of inversion symmetry breaking (ISB) and spin-orbit coupling (SOC). Enhancing spin-splitting strength is promising to achieve high spin-orbit torque (SOT) efficiency for low-power-consumption spintronic devices. However, the energy scale of natural ISB at the interface is relatively small, leading to the weak Rashba effect. In this work, we report that orbital hybridization inducing additional asymmetry potential at the interface observably enhan…

Use of a handheld ultrasound device for detecting orbital inflammation.

PURPOSE: Orbital inflammatory disease has been historically diagnosed with computed tomography (CT) and magnetic resonance imaging (MRI). Orbital ultrasound has served as a non-radiation alternative that has been successful at diagnosing many orbital pathologies but is not commonly used in clinical practice due to need for specialized ultrasound training and equipment needs. We demonstrate use of handheld ultrasound for detecting orbital inflammation. OBSERVATIONS: We present five patients with orbital inflammation where a handheld ultrasound probe was able to capture features consistent with…

Carotid-cavernous fistula due to contralateral orbital trauma.

Direct carotid cavernous fistula is an abnormal arterio-venous connection from the carotid artery to the cavernous sinus (CS), resulting in high-pressure arterial blood entering the low-pressure venous CS. Most often, it occurs posttrauma and presents with ipsilateral orbital signs. In this report, we describe the case of a 54-year-old man, who presented with a late-onset right-sided red eye and diplopia following contralateral (left sided) orbital trauma (road traffic accident 7 months ago). Ocular examination revealed signs of Lateral rectus palsy, axial proptosis, and elevated intraocular p…

[Contribution of technological aids to the extraction of orbital foreign bodies].

BACKGROUND: Removal of orbital foreign bodies is a surgical challenge. The purpose of this study is to report our experience in the removal of orbital foreign bodies and to evaluate the usefulness of various technological aids in their removal. MATERIALS AND METHODS: We conducted a single-center retrospective study at Nice University Hospital (France) from January 2017 to December 2023. All patients undergoing surgery for an orbital foreign body during the study period were included. Data recorded included the nature of the orbital foreign body, its size, location, surgical route, outcome (su…

Blood within the bone: orbital intraosseous venous malformation.

PURPOSE: Description of clinical features, radiological characteristics, and management strategies in primary orbital intraosseous venous malformation (OIVM) with pertinent literature review. METHODS: A retrospective analysis including clinical, radiologic, operative, and histopathological data of six cases of histopathologically proven OIVM was done. A comprehensive literature review was conducted using online databases and augmented with manual search to identify reported cases of OIVM. RESULTS: Study data showed five females and one male in young to middle-age group, with an average age o…

Refractory sphenoid wing osteomyelitis as a complication of orbital decompression.

Osteomyelitis of the sphenoid wing is a rare clinical entity that can result in significant morbidity due to cranio-orbital infection. This entity has never previously been described as a complication of orbital decompression. An elderly patient developed relapsing orbital cellulitis and cranio-orbital abscesses following orbital decompression. Multiple attempts at incision and drainage with extended antibiotic therapy failed to eliminate the infection. The patient's clinical course was indicative of sphenoid osteomyelitis at the prior decompression site. A combined craniotomy-orbitotomy with …