1/197. Optical coherence tomography of idiopathic polypoidal choroidal vasculopathy.PURPOSE: To document and study the cross-sectional structures of polypoidal elements using optical coherence tomography in eyes with idiopathic polypoidal choroidal vasculopathy. methods: Optical coherence tomography images of two eyes with idiopathic polypoidal choroidal vasculopathy were correlated with slit-lamp biomicroscopic findings, fundus photographs, fluorescein angiograms, and indocyanine green angiograms. RESULTS: Cross-sectional optical coherence tomographic images of retinochoroidal structures showed prominent anterior protrusion of the orange subretinal mass corresponding to the polypoidal structure in the indocyanine green angiogram. Hemorrhagic detachment of the retinal pigment epithelium was contiguous with the cone-shaped nodule beneath the retinal pigment epithelium in one eye, and an apparent discontinuity was observed in the highly reflective layer that delineates the polypoidal structure. CONCLUSIONS: Some of the polypoidal structures in eyes with idiopathic polypoidal choroidal vasculopathy are anteriorly protruding lesions in the inner choroid that may cause serosanguineous detachment of the retinal pigment epithelium through damage of the overlying bruch membrane, retinal pigment epithelium, and the adhesion between them. Cross-sectional optical coherence tomographic images may increase understanding of the pathophysiology of idiopathic polypoidal choroidal vasculopathy.- - - - - - - - - - ranking = 1keywords = optic (Clic here for more details about this article) |
2/197. The etiology and treatment of macular detachment associated with optic nerve pits and related anomalies.PURPOSE: Up to two thirds of patients with optic disc pits develop a sight-limiting maculopathy. There is confusion regarding the etiology and nature of the maculopathy in these cases. We present 7 cases of serous macular detachment occurring in association with optic pits or related cavitary anomalies and identify a rhegmatogenous etiology. methods: We reviewed the records of 7 patients with optic nerve anomalies and macular detachment. patients were treated with observation, barricade laser, vitrectomy, and/or gas tamponade. RESULTS: Seven patients were noted to have serous macular detachment associated with an optic nerve pit or other cavitary anomaly. A hole or tear in the diaphanous tissue overlying the optic pit was identified in all cases. None of the patients had a posterior vitreous detachment. Two were treated with photocoagulation only, and 5 underwent pars plana vitrectomy with fluid-gas exchange with or without photocoagulation. Pretreatment visual acuity ranged from 20/30 to 6/200. Posttreatment acuity ranged from 20/25 to 20/100. Five of 7 eyes had final acuities of 20/30 or better, and all treated eyes improved. CONCLUSIONS: A tear in the diaphanous tissue overlying the optic nerve pit is responsible for the development of serous macular detachment and is consistent with findings in similar conditions, such as retinal detachment in association with chorioretinal coloboma. These tears may be quite subtle, and careful biomicroscopic examination is required to appreciate them. The treatment of this condition remains controversial. However, because of the relatively poor prognosis, we believe treatment should include the formation of a barricade to fluid movement as well as sealing and relief of traction from the hole. The value of laser treatment may be increased by the early identification of a defect in the diaphanous membrane prior to the development of macular detachment. Consideration of prophylactic laser might then reduce the need for later, more invasive measures, and improve the prognosis.- - - - - - - - - - ranking = 9.3901375980126keywords = optic nerve, optic, nerve (Clic here for more details about this article) |
3/197. Tuberculous neuroretinitis.OBJECTIVES: To describe a patient with tuberculous neuroretinitis. MATERIALS AND methods: Retrospective case report. RESULTS: We describe a 43-year-old otherwise asymptomatic woman with a known exposure to tuberculosis who had unilateral optic disc edema and a partial macular star (neuroretinitis). This was followed approximately 1 year later by the development of an exudative retinal detachment in the setting of bilateral multifocal choroiditis. Laboratory testing revealed a marked positive cutaneous reaction to purified protein derivative (PPD). Treatment with antituberculosis medicine alone resulted in prompt resolution of the choroidal infiltrates and complete flattening of the exudative detachment. CONCLUSIONS: tuberculosis should be considered in the differential diagnosis for patients with neuroretinitis.- - - - - - - - - - ranking = 0.33333333333333keywords = optic (Clic here for more details about this article) |
4/197. Diphenylhydantoin teratogenicity: ocular manifestations and related deformities.This patient illustrates a classical case of what many pediatricians call the diphenylhydantoin teratogenic syndrome. It suggests the possibility of an additional ocular finding of retinoschisis and optic nerve abnormalities which could conceivably have a teratogenic basis. The effects of epilepsy and diphenylhydantoin on these formations is discussed.- - - - - - - - - - ranking = 1.1985910854304keywords = optic nerve, optic, nerve (Clic here for more details about this article) |
5/197. Retrobulbar optic neuritis and rhegmatogenous retinal detachment in a fourteen-year-old girl with retinitis pigmentosa sine pigmento.A 14-year-old girl complained of a sudden decrease in right visual acuity. The patient had night blindness, a mottled retina but no pigments, extinguished scotopic electroretinographic response, central scotoma in the right eye and rhegmatogenous retinal detachment. She had initially received laser photocoagulation around the retinal tear and then corticosteroid therapy, cryoretinopexy and segmental buckling. Her right visual acuity increased to 1.0. The association of retinitis pigmentosa sine pigmento, retrobulbar optic neuritis and rhegmatogenous retinal detachment, as demonstrated in our patient, may be uncommon.- - - - - - - - - - ranking = 1.6666666666667keywords = optic (Clic here for more details about this article) |
6/197. Migration of silicone oil into the brain: a complication of intraocular silicone oil for retinal tamponade.PURPOSE: To report a case in which intravitreal silicone oil migrated along the intracranial portion of the optic nerve and into the lateral ventricles of the brain after the repair of a retinal detachment secondary to cytomegalovirus retinitis. methods: A 42-year-old man with acquired immunodeficiency syndrome (AIDS) developed a rhegmatogenous retinal detachment in his left eye secondary to a cytomegalovirus infection of the retina. The detachment was repaired using 5000 cs intraocular silicone oil for a long-term tamponade. Subsequently, the affected eye developed glaucoma, which was poorly controlled. Fifteen months after the retinal surgery, he developed a peripheral neuropathy that was thought to be AIDS related. Computed tomography and magnetic resonance imaging of the head were performed to investigate the neuropathy. RESULTS: The patient was found to have a foreign substance within his lateral ventricles that shifted with position and was identical with respect to its imaging properties to the remaining intraocular silicone oil. Additional material was found along the intracranial portion of his optic nerve. CONCLUSION: Under certain circumstances, intraocular silicone oil may migrate out of the eye, along the intracranial portion of the optic nerve, and into the lateral ventricles of the brain.- - - - - - - - - - ranking = 3.5957732562911keywords = optic nerve, optic, nerve (Clic here for more details about this article) |
7/197. Reattachment of retina and retinoschisis in pit-macular syndrome by surgically-induced vitreous detachment and gas tamponade.The origin of the subretinal fluid in pit-macular syndrome is unknown. Using optical coherence tomography, the authors observed that an optic disk pit is not a true pit but a cystic cavity covered with a superficial layer of the optic disk in a patient with retinal detachment and retinoschisis. The cyst was connected to the intraretinal space of the retina, which was split in several layers, or the retinoschisis in the papillomacular area. vitrectomy and gas tamponade were performed to treat the patient. During surgically-induced vitreous detachment, strong vitreoretinal attachment at the disk margin and the fovea was observed. After surgery, the cystic space at the optic disk disappeared and the retinal detachment and retinoschisis reattached. Vitreous traction may play a role to introduce the fluid from the optic cyst to the subretinal space through the superficially split retina.- - - - - - - - - - ranking = 1.6666666666667keywords = optic (Clic here for more details about this article) |
8/197. OCT in successful surgery of retinal detachment associated with optic nerve head pit.The authors describe the course of a patient with retinal detachment associated with optic nerve head pit for whom optical coherence tomography (OCT) was performed before and after vitrectomy and gas tamponade. An 18-year-old woman presented with macular elevation and a lamellar macular hole associated with optic nerve head pit. OCT showed that the retinal elevation consisted of both separation of the inner and outer retinal layers and detachment of the outer layers from the retinal pigment epithelium. After vitreous surgery and postoperative intraocular gas tamponade, the macular elevation gradually resolved, and OCT showed that improvement in central vision corresponded with flattening of the outer layer detachment in the fovea. OCT is a useful tool for monitoring the therapeutic effect of vitrectomy and gas tamponade for retinal detachment associated with optic nerve head pit.- - - - - - - - - - ranking = 8.723470931346keywords = optic nerve, optic, nerve (Clic here for more details about this article) |
9/197. retinal detachment and retinoschisis detected by optical coherence tomography in a myopic eye with a macular hole.The authors describe a myopic patient with a full-thickness macular hole that was accompanied by both retinal detachment and retinoschisis. A 51-year-old woman presented with a localized retinal elevation of three disc diameters around the macular hole in a myopic eye. Optical coherence tomography (OCT) showed features of both retinal detachment and retinoschisis. After vitreous surgery and postoperative intraocular gas tamponade, the macular elevation resolved, and separation of the neurosensory retina from the retinal pigment epithelium band disappeared on the OCT images. OCT is a useful tool for examining macular conditions associated with a macular hole in myopic patients.- - - - - - - - - - ranking = 1.3333333333333keywords = optic (Clic here for more details about this article) |
10/197. Confirmation of persistent closure of surgically repaired macular hole in subsequent retinal detachment by optical coherence tomography.Idiopathic macular holes have shown response to surgical intervention with vitrectomy, presumably because of glial cell proliferation in the reapproximated tissue. We describe a patient with postoperative closure of a macular hole who subsequently developed a retinal detachment involving the macular area. Despite the detachment, the macular hole remained closed as evidenced by biomicroscopy and optical coherence tomography (OCT). OCT provides accurate documentation and assessment of pre- and postoperative conditions in macular hole surgery.- - - - - - - - - - ranking = 1.6666666666667keywords = optic (Clic here for more details about this article) |
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