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Acute Leukemia Relapse Presenting as Recurrent Involvement of the Optic Nerve

Lee SY, Yoon JH, Chung SA

PURPOSE: To report two cases with recurrent involvement of the optic nerve as the initial sign of acute leukemic relapse. CASE SUMMARY: An 8-year-old male with acute lymphoblastic leukemia on the...
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Thyroid-Associated Orbitopathy: Evaluating Microstructural Changes of Extraocular Muscles and Optic Nerves Using Readout-Segmented Echo-Planar Imaging-Based Diffusion Tensor Imaging

Chen HH, Hu H, Chen W, Cui D, Xu XQ, Wu FY, Yang T

OBJECTIVE: We aimed to investigate the ability of readout-segmented echo-planar imaging (rs-EPI)-based diffusion tensor imaging (DTI) in assessing the microstructural change of extraocular muscles (EOMs) and optic nerves in patients...
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Peripapillary Granuloma with Optic Nerve Head Involvement Associated with Sarcoidosis

Chung IK, Lee J, Shin JY

No abstract available.
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The comparison of optic nerve sheath diameter measured by computed tomography and ultrasonography in evaluating increased intracranial pressure

Sung BY, Hong DY, Kim SY, Kim JW, Park SO, Lee KR, Baek KJ

OBJECTIVE: While the optic nerve sheath diameter (ONSD) is measured by computed tomography and ultrasonography as an indicator of an elevation in the intracranial pressure (ICP), it is unclear which...
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Effect of High Myopia on Optic Nerve Head by Confocal Scanning Laser Ophthalmoscopy in Nepalese Eyes

Bhaila S, Joshi SN, Thapa M, Shrestha G

PURPOSE: To compare parameters of confocal scanning laser ophthalmoscopy (Heidelberg Retinal Tomograph [HRT] II) in high myopia with age- and sex-matched emmetropes. METHODS: A hospital-based cross-sectional study was conducted among Nepalese...
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Anti-Vascular Endothelial Growth Factor Therapy for Choroidal Neovascularization Secondary to Optic Nerve Head Drusen

Park KH

PURPOSE: To describe a patient with optic nerve head drusen who showed improved retinal hemorrhage and visual acuity following intravitreal anti-vascular endothelial growth factor (bevacizumab) injection. CASE SUMMARY: A 53-year-old woman...
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Optic nerve sheath diameter changes during gynecologic surgery in the Trendelenburg position: comparison of propofol-based total intravenous anesthesia and sevoflurane anesthesia

Lee YY, Lee H, Park HS, Kim WJ, Baik HJ, Kim DY

BACKGROUND: Elevated intracranial pressure (ICP), a disadvantage of laparoscopic or robotic surgery, is caused by the steep angle of the Trendelenburg position and the COâ‚‚ pneumoperitoneum. Recently, sonographically measured optic...
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Measurement of the Optic Nerve Sheath Diameter with Magnetic Resonance Imaging and Its Association with Eyeball Diameter in Healthy Adults

Kim DH, Jun JS, Kim R

BACKGROUND AND PURPOSE: The optic nerve sheath diameter (ONSD) is an indirect marker of the intracranial pressure, but the normal range of ONSD as measured using magnetic resonance imaging (MRI)...
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Optic Nerve Sheath Meningioma: Preliminary Analysis of the Role of Radiation Therapy

Jin J, Joo JD, Han JH, Yang HK, Hwang JM, Kim YJ, Kim IA, Kim CY

BACKGROUND: The purpose of this study was to evaluate the treatment outcome of our optic nerve sheath meningioma (ONSM) case series in terms of preventing tumor growth and preserving vision...
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Optic Neuropathy with Diffusion Weighted High Signal Changes in Optic Nerve

Kim KH, Kim Y, Lee JT, Lee JM

No abstract available.
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Effective Delivery of Exogenous Compounds to the Optic Nerve by Intravitreal Injection of Liposome

Lee J, Goh U, Park JH, Park SW, Heo H

PURPOSE: To improve the treatment efficiency of optic nerve diseases by delivering therapeutic materials to the optic nerve directly. METHODS: We tried to optimize liposomal composition to deliver a payload to...
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Availability of the Optic Nerve Sheath Diameter Measured by Using Brain CT in Intracranial Hemorrhage

Yu JK, Kim YW, Kang JH, Yoon YS

PURPOSE: This study was designed to evaluate the applicability of optic nerve sheath diameter (ONSD), as measured by a brain CT, in intracranial hemorrhage patients. We assumed that ONSD can...
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The Utility of Measuring the Difference between the Two Optic Nerve Sheath Diameters Using Ultrasonography in Predicting Operation Indication in Patients with Traumatic Brain Hemorrhage

Park CJ, Sun KH, Cho SH, Kim SJ

PURPOSE: An increase in optic nerve sheath diameter (ONSD) has been associated with elevated intracranial pressure due to brain lesions, such as hemorrhage, infarction, and tumor. The aim of this...
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Initial Pattern of Optic Nerve Enhancement in Korean Patients with Unilateral Optic Neuritis

Son DY, Park KA, Seok SS, Lee JY, Oh SY

PURPOSE: The purpose of this study was to demonstrate whether the pattern of optic nerve enhancement in magnetic resonance imaging (MRI) can help to differentiate between idiopathic optic neuritis (ON),...
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Correlation between Optic Nerve Sheath Diameter Measured by Computed Tomography and Elevated Intracranial Pressure in Patients with Traumatic Brain Injury

Lim TK, Yu BC, Ma DS, Lee GJ, Lee MA, Hyun SY, Jeon YB, Choi KK

PURPOSE: The optic nerve sheath diameter (ONSD) measured by ultrasonography is among the indicators of intracranial pressure (ICP) elevation. However, whether ONSD measurement is useful for initial treatment remains controversial....
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A Case of Optic Nerve Head Swelling in a Patient with Primary Open-angle Glaucoma

Kim DG, Kim JL

PURPOSE: To report a case of masked glaucomatous optic nerve head damage due to acute swelling in a primary open-angle glaucoma patient. CASE SUMMARY: A healthy 21-year-old male visited our clinic...
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Near-complete optic nerve transection by high-pressure air

Ko SW, Lee JS, Choi HS, Ko YG, Hong HP

The use of high-pressure air instruments has become more common. Consequently, there have been a number of cases of orbital emphysema caused by contact with high-pressure air. In this case,...
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Enhancement of Optic Nerve in Leukemic Patients: Leukemic Infiltration of Optic Nerve versus Optic Neuritis

Ra YH, Park SY, Im SA, Kim JY, Chung NG, Cho B

PURPOSE: To identify magnetic resonance imaging (MRI) findings of leukemic infiltration of optic nerve and optic neuritis in leukemic patients with emphasis of clinical findings as reference standard to differentiate...
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Charles Bonnet Syndrome Following Trans-Sphenoidal Adenomectomy without Optic Nerve Atrophy

Park JH, Ahn JH, Park JB, Joe S

Charles Bonnet syndrome (CBS) can develop after trans-sphenoidal adenomectomy (TSA); however, the neural mechanisms remain unknown. Sensory deprivation and releasing phenomenon are both hypothetical explanations for this condition; however, there...
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Clinical Course of Optic Nerve Sheath Meningioma

Lee JM, Park SY, Lee SY, Yoon JS, Kim CY

PURPOSE: To evaluate the clinical course of optic nerve sheath meningioma (ONSM) in Korean patients. METHODS: A retrospective study of 11 eyes of 11 patients with a diagnosis of ONSM between...
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