1/109. optic nerve cysticercosis in the optic canal.The authors present a first case of cysticercosis in the optic canal in a fifteen-year-old female patient. cysticercosis of the optic nerve is rare. A cyst in the optic canal, beneath the sheath of the optic nerve, has never been reported. The patient presented with rapidly diminishing vision in the left eye, headache and papillitis. A magnetic resonance imaging revealed a cystic lesion at the entrance of the optic canal. Surgery performed was a transcranial orbitotomy which included deroofing of the optic canal and removal of the cyst from under the sheath of the optic nerve. The cyst proved to be cysticercus histopathologically. The outcome was a remarkable visual recovery.- - - - - - - - - - ranking = 1keywords = eye (Clic here for more details about this article) |
2/109. Ocular filariasis: not strictly tropical.A 65-year-old man consulted for a discomfort in the right eye that had suddenly appeared the evening before. The examination revealed a white worm localized under the temporal bulbar conjunctiva. After extraction, the parasitological characteristics identified the worm as dirofilaria repens (Nochtiella subgenus). This is a parasite of canids and felids, usually nonpathogenic to humans, but which can be transmitted through mosquito bites, especially around the Mediterranean basin. The simple extraction of the worm, encysted under the skin or under the conjunctiva, cures the patient.- - - - - - - - - - ranking = 1keywords = eye (Clic here for more details about this article) |
3/109. Diffuse unilateral subacute neuroretinitis in europe.BACKGROUND: Diffuse unilateral subacute neuroretinitis is thought to be caused by a solitary helminth migrating within the subretinal space. Laser photocoagulation of the located worm is the preferred mode of therapy. methods: We describe the clinical and electrophysiological features of a case of a 15-year-old Caucasian male with a longstanding diffuse unilateral subacute neuroretinitis (DUSN), in whom two worms were seen in the fundus examination. Focal photocoagulation of the worms was applied as treatment. RESULTS: No signs of inflammation could be seen after treatment. Three months later, the patient was doing well. Follow-up examination 4 years later revealed an unchanged fundus appearance in the affected eye, with no evidence of progression of the syndrome. CONCLUSIONS: If a worm is identified in DUSN, focal laser treatment of the located area is the treatment of choice, regardless of whether fundus changes suggest late stages of the disease. However, the eye of the patient should be thoroughly examined to rule out the presence of more than one worm that might cause the failure of therapy.- - - - - - - - - - ranking = 2keywords = eye (Clic here for more details about this article) |
4/109. Ocular toxocariasis: a rare presentation of a posterior pole granuloma with an associated choroidal neovascular membrane.BACKGROUND: Ocular toxocariasis is a rare infection caused by the nematode larvae of toxocara canis, which is commonly found in dogs. Human transmission is usually via geophagia, the ingestion of food contaminated with the toxocara eggs, or contact with infected puppies, often resulting in devastating ocular and/or systemic effects. Distribution is worldwide; however, a higher incidence is demonstrated in the united states. methods: A 17-year-old black woman sought treatment at a neighborhood health center with a report of gradual decrease in vision from her left eye over a 3-month period. Her ocular and systemic histories were unremarkable. Anterior segment evaluation revealed no signs of anterior uveitis. The posterior pole showed a 1.5 DD, round, raised, white, subretinal lesion adjacent to the fovea with an overlying serous retinal detachment and retinal hemorrhage. RESULTS: She was referred to a retinologist who performed both fluorescein and indocyanine green (ICG) angiographies. A serum toxocara ELISA test was also ordered. fluorescein angiography revealed hyperfluorescence consistent with the granuloma. The ICG demonstrated an occult choroidal neovascular membrane (CNV) underlying the area of hemorrhage inferotemporal to the granuloma. CONCLUSION: This paper illustrates the case presentation and includes an extensive review of the ocular and systemic manifestations of toxocariases. A description of ICG videoangiography, therapeutic approaches, and management will also be discussed.- - - - - - - - - - ranking = 1keywords = eye (Clic here for more details about this article) |
5/109. Ocular linguatuliasis in ecuador: case report and morphometric study of the larva of Linguatula serrata.Linguatula serrata is a pentastomid, a cosmopolitan parasite belonging to the Phylum pentastomida. humans may act as an intermediate or accidental definitive host of this parasite, manifesting the nasopharyngeal or visceral form, with the latter having been described more frequently. The occurrence of ocular linguatuliasis is extremely rare, but it has been reported in the united states and israel. The objective of the present paper was to report the first case of ocular linguatuliasis in ecuador and to extend the morphologic study of L. serrata by morphometric analysis. The patient studied was a 34-year old woman from Guayaquil, ecuador who complained of ocular pain with conjunctivitis and visual difficulties of two-months duration. Biomicroscopic examination revealed a mobile body in the anterior chamber of the eye. The mobile body was surgically removed. The specimen was fixed in alcohol, cleared using the technique of Loos, stained with acetic carmine, and mounted on balsam between a slide and a coverslip. It was observed with stereoscopic and common light microscopes in combination with an automatic system for image analysis and processing. The morphologic and morphometric characteristics corresponded to the third-instar larval form of L. serrata. To our knowledge, ocular linguatuliasis has not been previously described in south america, with this being the first report for ecuador and south america. The present study shows that computer morphometry can adequately contribute both to the morphologic study and to the systematic classification of Pentastomids, and L. serrata in particular.- - - - - - - - - - ranking = 1keywords = eye (Clic here for more details about this article) |
6/109. Diffuse bilateral subacute neuroretinitis: first patient with documented nematodes in both eyes.OBJECTIVE: To describe the first patient with documented evidence of diffuse unilateral subacute neuroretinitis (DUSN) in both eyes. methods: A 10-year-old healthy Brazilian girl was first seen with signs of late-stage DUSN in both eyes. A careful search for a nematode was performed in each eye. RESULTS: A motile 550- to 660-microm nematode was found in the inferotemporal retina of the left eye. A similar-sized motile nematode was found in the superotemporal retina of the right eye. Both nematodes were treated with argon green laser applications with bilateral improvement of visual function. CONCLUSION: Although most patients with DUSN do not develop the disease in the fellow eye, this case demonstrates that DUSN can occasionally affect both eyes.- - - - - - - - - - ranking = 11keywords = eye (Clic here for more details about this article) |
7/109. Ophthalmomyiasis caused by Sarcophaga crassipalpis (diptera: sarcophagidae) in a hospital patient.Nine sarcophagid larvae were found on the right eyelid, cornea, and bulbar conjunctiva of a debilitated patient in a hospital in Osaka, japan. inflammation of the right eyelid and conjunctival congestion, probably initiated or aggravated by the larvae, were found. The larvae were removed and reared for accurate identification, and, on the basis of the characteristics of the 3rd instar and adult flies, the species was identified as Sarcophaga crassipalpis Macquart. This is a report of ophthalmomyiasis caused by this facultative parasite in a human. patients with diminished consciousness in hospitals need protection from flies.- - - - - - - - - - ranking = 2keywords = eye (Clic here for more details about this article) |
8/109. South American cutaneous leishmaniasis of the eyelids: report of five cases in Rio de Janeiro State, brazil.PURPOSE: To describe American cutaneous leishmaniasis of the eyelids and highlight the main clinical and diagnostic features of lesions, which are rare in this location. DESIGN: Retrospective, noncomparative case series methods: Leishmanin skin test, touch preparations, histopathologic analysis, and culture in appropriate media were used for clinical confirmation and parasitologic diagnosis. Positive cultures were identified by the iso-enzymes technique. All patients were treated with pentavalent antimony applied intramuscularly. RESULTS: Leishmanin skin test was positive in all five patients. touch preparations, histopathologic analysis, and culture were performed in four patients. touch preparations were positive (presence of Leishman's bodies) in two patients; histopathologic analysis showed a granulomatous infiltrate in four patients and parasite was present in two patients; culture was positive in three patients, and in two the parasite was identified as Leishmania (Viannia) braziliensis. Therapy was effective for all patients. CONCLUSIONS: Cutaneous leishmaniasis of the eyelids is uncommon in the americas. The disease may present diagnostic difficulties when appearing in nonendemic areas. The clues for diagnosis are the clinical aspect of lesions, the epidemiologic data, and a positive Leishmanin skin test. Demonstration of parasite is not always possible. Pentavalent antimonial compounds are the therapy of choice. Formerly, transmission of leishmaniasis occurred only when humans penetrated forested areas and became an incidental host. Now, eyelid lesions are part of the changing pattern in the transmission of the disease. With the increase in ecotourism, these lesions may begin to be seen in air travelers returning to other parts of the world.- - - - - - - - - - ranking = 7keywords = eye (Clic here for more details about this article) |
9/109. Ophthalmomyiasis and nasal myiasis in new zealand: a case series.We report three cases of ophthalmomyiasis in new zealand, due to the larvae of Oestrus ovis. All three patients reported eye injury caused by a fly. The larvae were removed from the conjunctival sac without difficulty under local anaesthesia. Presenting ocular symptoms of foreign body sensation, irritation, redness and photophobia all resolved swiftly. Topical antibiotic and steroid eye drops were administered. All three patients also developed nasal symptoms such as sneezing, nasal discharge and epistaxis. otolaryngology follow-up demonstrated nasal myiasis in two patients which was treated with nasal decongestants. In addition, all three patients were treated with ivermectin (Mectizan).- - - - - - - - - - ranking = 2keywords = eye (Clic here for more details about this article) |
10/109. Subcutaneous cysticercosis involving the eyelid: sonographic diagnosis.A 25-year-old man and a 14-year-old boy presented with neurocutaneous cysticercosis involving the eyelid. Both patients had hundreds of scattered subcutaneous cysticerci. They were arranged in clusters over the sternocleidomastoid muscle in the neck. Such clustering of cysticerci is highly suggestive of central nervous system (CNS) involvement, as both the sternocleidomastoid muscle and the CNS are supplied by the carotid artery and cysticerci travel via the hematogenous route. We used ultrasonography to diagnose subcutaneous cysticercosis, which showed characteristic low reflective cysts and high reflective scolices inside. Although subcutaneous cysticerci are inconsequential, their verification is important in the diagnosis of more severe CNS involvement. They may be confused with other painless swellings such as lymphadenopathies, neurofibromas, and epidermoid cysts.- - - - - - - - - - ranking = 5keywords = eye (Clic here for more details about this article) |
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