نتایج جستجو برای: radiation optic neuropathy
تعداد نتایج: 322560 فیلتر نتایج به سال:
glaucoma is a major cause of worldwide irreversible blindness. the central role of raised intraocular pressure (iop) is being questioned as many patients continue to demonstrate a clinically downhill course despite initial control of iop. the latest concept of recognizing glaucoma as a multifactorial, progressive, neurodegenerative disease of retinal ganglion cells (rgcss) associated with chara...
OBJECTIVE To refine the criteria for the diagnosis of amiodarone-related optic neuropathy by including a broader spectrum of clinical features, thus helping to differentiate this entity from nonarteritic anterior ischemic optic neuropathy coincidentally affecting a patient taking amiodarone. METHODS A retrospective case review of 22 patients who developed optic neuropathy while taking amiodar...
Uveal melanoma represents the most prevalent form of primary malignant intraocular tumor in adults. Historically, enucleation was considered gold-standard approach treatment uveal melanoma. Currently, radiotherapy is commonly used therapy, aiming at a better quality life. However, can result several ocular complications, some which may be vision-threatening. Radiation-induced dry eye, scleral n...
PURPOSE To report a case and describe the clinical approach to a patient with a non-small cell lung carcinoma and paraneoplastic optic neuropathy. METHODS Case report. RESULTS A 79-year-old woman with known non-small cell lung carcinoma was admitted with a swollen optic disc in the right eye. After detailed clinical, laboratory, and imaging studies, the authors diagnosed paraneoplastic opti...
OBJECTIVE Fibrous dysplasia (FD) of bone may occur solely as a skeletal condition or it may occur in association with extraskeletal manifestations, including growth hormone (GH) excess. Uncertainty exists as to the management of FD involving the optic nerves. In an effort to clarify management, the authors studied a large population of patients. METHODS One hundred four patients underwent an ...
PURPOSE Orbital invasion of pituitary tumors is rare and usually accompanied by optic nerve head pallor and visual loss. We describe a case of unilateral massive orbital invasion by a recurrent pituitary tumor with preserved visual acuity and normal optic nerve appearance. METHODS Case report. RESULTS Progressive proptosis developed 15 years after transphenoidal removal of a pituitary tumor...
Nonarteritic anterior ischemic optic neuropathy (NAION) is the most common form of ischemic optic neuropathy and the second most common optic neuropathy. Patients are generally over the age of 50 years with vasculopathic risk factors (eg, diabetes mellitus, hypertension, and obstructive sleep apnea). The exact mechanism of NAION is not fully understood. In addition, several treatment options ha...
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