1/6. Anterior ischemic optic neuropathy associated with viagra.A 42-year-old male presented with acute onset of an inferior visual field defect OD after sildenafil citrate use. Examination revealed a right relative afferent pupillary defect and a swollen disc with a 0.1 cup-to-disc ratio and a prominent disc hemorrhage. Anterior ischemic optic neuropathy (AION) is associated with acute episodes of hypotension in patients with structurally crowded discs. Sildenafil citrate may cause episodes of hypotension and was temporally related to the onset of symptoms in this patient. Because patients are often reluctant to volunteer their history of sildenafil citrate use, the physician may need to ask specifically about use of this medication. physicians should counsel patients with crowded optic discs and a history of nonarteritic anterior ischemic optic neuropathy in one eye that use of sildenafil citrate might increase their risk of ischemic optic neuropathy in the fellow eye.- - - - - - - - - - ranking = 1keywords = physician (Clic here for more details about this article) |
2/6. Von Willebrand's disease type I as a cause for subvitreal, retinal and subretinal haemorrhages.BACKGROUND: Young patients with vitreous, retinal and subvitreal haemorrhages without neovascularisation or prior trauma are a diagnostic challenge for the physician. In this case report, a patient is presented who developed unilateral, spontaneous, subvitreal, retinal and subretinal haemorrhages and was diagnosed with von Willebrand's disease. CASE REPORT: A 33-year-old Caucasian woman presented at our clinic with unilateral subvitreal, retinal and subretinal haemorrhages. The haemorrhages occurred spontaneously without prior trauma, and the patient had no history of prior bleeding complications. Analysis of the coagulation-fibrinolysis system and von Willebrand multimer analysis led to the diagnosis von Willebrand's disease type I. CONCLUSIONS: Spontaneous subvitreal, retinal and subretinal haemorrhages may be associated with coagulation disorders. Especially in young patients, von Willebrand's disease should be considered as a possible cause.- - - - - - - - - - ranking = 1keywords = physician (Clic here for more details about this article) |
3/6. Retinal hemorrhages in subacute carbon monoxide poisoning. Exposures in homes with blocked furnace flues.Three incidences of carbon monoxide poisoning occurred owing to defective heating systems. Twelve persons were affected; of these, three lost their lives. Because the symptoms of carbon monoxide poisoning closely resemble flu and other common illnesses, correct diagnosis was not made as promptly as it might have been. Hemorrhages were found in the nerve fiber layer of the retina in all five of the patients who had been exposed for more than 12 hours. It is our contention, therefore, that complete examination of the patient should always include ohthalmoscopy, and that the finding of retinal hemorrhages, in addition to nausea, headache, and dizziness, should aler the physician to the possibility of carbon monoxide poisoning.- - - - - - - - - - ranking = 1keywords = physician (Clic here for more details about this article) |
4/6. A case of Purtscher's retinopathy.This article describes a case of Purtscher's retinopathy, a syndrome believed to be caused by microembolic infarction of the retina, in a 20-year-old man after remote extraocular trauma. The patient jumped from a 20-meter high building. He suffered multiple crush injuries, but a computed tomographic scan of the brain and orbit was normal. More than 1 month after injury, his visual acuity diminished to light perception in the right eye and counting fingers in the left. The ophthalmoscopic picture was characteristic of Purtscher's retinopathy with cotton-wool exudates and retinal hemorrhages localized to the posterior pole. His vision was improved only slightly 6 months later. Although rare, emergency physicians should be familiar with this entity as a cause of diminished vision associated with extraocular trauma.- - - - - - - - - - ranking = 1keywords = physician (Clic here for more details about this article) |
5/6. indocyanine green videoangiography of hemorrhagic retinal arterial macroaneurysms.We examined 3 patients with isolated retinal macroaneurysms and secondary hemorrhage by standard fluorescein angiography (FA) and indocyanine green (ICG) angiography. In contrast to standard FA, ICG videoangiography clearly demonstrated the lesion to be pulsatile, contiguous with the arterial wall and pathognomonic of an isolated retinal artery macroaneurysm. ICG with its absorption and emission peak in the near-infrared range penetrates hemorrhage to a greater degree than does blue or green light of conventional FA. ICG can be essential in delineating the specific cause of the bleeding and allow the physician to choose the correct specific form of treatment needed.- - - - - - - - - - ranking = 1keywords = physician (Clic here for more details about this article) |
6/6. Subretinal fibrosis and nonrhegmatogenous retinal detachment associated with multifocal central serous chorioretinopathy.PURPOSE: To report the rare occurrence of subretinal fibrosis in patients with multifocal central serous chorioretinopathy and evaluate the role of systemic corticosteroids and the effects of laser photocoagulation on multifocal leaks. methods: A total of 29 patients (mean age, 37.7 years; 89.7% male) treated for subretinal fibrosis and multifocal central serous chorioretinopathy from 1983-1995 were reviewed retrospectively. Mean follow up was 26 months (range, 6.8-81 months). RESULTS: retinal detachment involved the macula in 72.4% cases. fluorescein angiography showed a mean of 6.7 (range, 2-22) central serous chorioretinopathy leaks and a mean of 1.8 (range, 1-5) retinal pigment epithelial detachments. The fundus pictures of 23 patients who were taking systemic corticosteroids showed no improvement. Following laser treatment, however, retinal reattachment was obtained in all eyes, and improvement in visual acuity of > 2 Snellen lines was noted in 68.9% of patients. CONCLUSIONS: The presence of subretinal fibrosis with secondary retinal detachment in otherwise healthy young patients, particularly in men, should alert the physician to look for multifocal central serous retinopathy leaks. Systemic corticosteroids did not prove effective in treating these patients, although laser treatment is recommended for each leak identified on an angiogram.- - - - - - - - - - ranking = 1keywords = physician (Clic here for more details about this article) |