1/12. Venous collateral remodeling in a patient with posttraumatic glaucoma.PURPOSE: To photographically document venous collateral development, remodeling, and regression in a patient with traumatic glaucoma. methods: Consecutive fundus photographs were evaluated, labeled, and correlated with the clinical history of a patient with unilateral posttraumatic glaucoma. RESULTS: This report photographically documents the appearance, remodeling, and subsequent disappearance of collateral vessels from venous occlusion on the surface of the optic disk in an eye with increased intraocular pressure and progressive glaucomatous cupping. CONCLUSIONS: Asymptomatic chronic obstruction of a branch retinal vein on the optic disk may cause venous collaterals to develop in the absence of retinal hemorrhages or other signs of venous occlusive disease. Increased intraocular pressure, arteriolarsclerosis, and glaucomatous cupping are risk factors for these occlusions.- - - - - - - - - - ranking = 1keywords = vessel (Clic here for more details about this article) |
2/12. Retinal opacification after blunt non-perforating concussional injuries to the globe. A clinical and retinal fluorescein angiographic study.Fluorescein angiographic studies are reported on fifteen patients presenting with retinal opacification after blunt mechanical non-perforating injuries involving the eye. In patients who subsequently regained full visual function and in whom complete resolution of the retinal changes occurred, retinal fluorography carried out less than 24 hours after injury revealed no abnormal features. In cases with more prolonged visual disability, retinal fluorescein examinations may, however, reveal damage to the retinal pigment epithelium before this becomes apparent on routine ophthalmoscopy, or the existence of impaired perfusion through the retinal vessels. It is suggested, therefore, that retinal fluorescein angiography has a role in assessing the visual prognosis in patients presenting with traumatic retinal oedema.- - - - - - - - - - ranking = 1keywords = vessel (Clic here for more details about this article) |
3/12. indocyanine green angiographic features of choroidal rupture and choroidal vascular injury after contusion ocular injury.PURPOSE: To report features of choroidal rupture and choroidal vascular injury after contusion ocular injury on indocyanine green angiography. methods: In a prospective study, nine patients (nine eyes) with choroidal rupture after ocular contusion underwent initial fluorescein angiography and indocyanine green angiography within 19 days after trauma. Eyes that had a distinct abnormality of the retinal pigment epithelium were excluded from this study. Subtraction indocyanine green angiography was also performed. Follow-up fluorescein angiographic and indocyanine green angiographic findings were also studied. RESULTS: Initial ophthalmoscopic examination revealed subretinal hemorrhage in all nine eyes. In five of the nine eyes, choroidal rupture was not seen on initial ophthalmoscopic or fluorescein angiographic examination because it was hidden beneath the subretinal hemorrhage, but it was detected on subsequent examinations. In the remaining four eyes, choroidal rupture was observed by ophthalmoscopy at the time of initial examination, and these eyes exhibited hyperfluorescent streaks on fluorescein angiography in the region of the subretinal hemorrhage. On initial indocyanine green angiography of all nine eyes, observed hypofluorescent streaks became more obvious with time. For each eye, there were more hypofluorescent streaks on indocyanine green angiography than hyperfluorescent streaks on fluorescein angiography. In one eye, the location of indocyanine green leakage nearly coincided with the location of a hyperfluorescent streak on fluorescein angiography. In this case, crescentic streaks of hypofluorescence were seen on the temporal side of the subretinal hemorrhage on indocyanine green angiography, although choroidal rupture was not observed in that region by ophthalmoscopy or fluorescein angiography. In two of the nine eyes, indocyanine green angiography and the subtraction technique demonstrated disturbance of flow into choroidal vessels, especially at the choroidal rupture site. CONCLUSION: After ocular contusion injury, various features of choroidal rupture and choroidal vascular injury were observed on indocyanine green angiography. This technique may contribute to the diagnosis of choroidal rupture and to the understanding of the clinical course after injury.- - - - - - - - - - ranking = 1keywords = vessel (Clic here for more details about this article) |
4/12. indocyanine green angiographic findings in 3 patients with traumatic hypotony maculopathy.PURPOSE: Little is known about the choroidal circulation in human eyes with ocular hypotony. Recently, indocyanine green angiography (IA) became a useful method for examining choroidal circulation. The present study using IA was designed to determine choroidal circulatory disturbances in patients with traumatic hypotony maculopathy. methods: indocyanine green angiography was performed on 3 consecutive patients (3 eyes) with traumatic hypotony. One patient underwent IA using an infrared fundus camera only during the hypotony stage. The other 2 patients underwent IA using a scanning laser ophthalmoscope before and after recovery of intraocular pressure (IOP). RESULTS: During the hypotony stage, IA revealed multiple hypofluorescent spots in many parts of the fundus, sector hypofluorescent areas, dilatation, and tortuosity of the choroidal vessels in the posterior pole. These findings had not been detected by fluorescein angiography. After surgical treatment, IOP returned to the normal range and visual acuity improved. indocyanine green angiography showed improvement of the sector hypofluorescent areas, and dilatation and tortuosity of choroidal vessels in the posterior pole. However, most of the hypofluorescent spots and regional delay of choroidal filling remained. CONCLUSIONS: indocyanine green angiography revealed that choroidal circulatory disturbances occurred during the hypotony stage and that some remained during the recovery stage.- - - - - - - - - - ranking = 2keywords = vessel (Clic here for more details about this article) |
5/12. Complete avulsion of the optic nerve. A clinical, angiographic, and electrodiagnostic study.A case of traumatic complete avulsion of the optic nerve is reported together with fluorescein angiography and electrodiagnostic findings. Despite the disappearance of the central vessels, circulation remained in the branch retinal vessels and angiography demonstrated communication between peripapillary choroidal vessels and the superior temporal artery. The visually-evoked cortical response was abolished. electroretinography showed a normal a-wave but reduced amplitude b-wave, not supporting the theory of the existence of centrifugal retino-suppressive fibres in the optic nerve of man.- - - - - - - - - - ranking = 3keywords = vessel (Clic here for more details about this article) |
6/12. Post traumatic subconjunctival dislocation of lens in ehlers-danlos syndrome.Ehlers-Danlos Syndromes are a rare group of inherited connective tissue disorders of defective collagen synthesis. They predominantly involve the skin, joints and vessels. Ocular involvement in the form of blue sclera, microcornea and susceptibility to trauma is a common feature of EDS type VI. A minor ocular trauma in these patients can cause globe rupture. We herein report simple and successful management of a case of traumatic subconjunctival dislocation of lens in a patient of EDS type VI.- - - - - - - - - - ranking = 1keywords = vessel (Clic here for more details about this article) |
7/12. Bone wax as a cause of a foreign body granuloma in a cranial defect: a case report.Bone wax was used to stop bleeding of the diploic vessels after harvesting cranial bone for reconstruction of an orbital floor defect. After five months a fistula in the overlying skin of the donor site appeared and was eventually surgically explored. Remnants of bone wax and surrounding inflammatory tissue were removed and the fistula was excised. Histological examination revealed a foreign body granuloma. The use of bone wax and possible alternative local haemostatic agents and their complications are discussed.- - - - - - - - - - ranking = 1keywords = vessel (Clic here for more details about this article) |
8/12. Papillary glioneuronal tumor: a case report and review of the literature.Papillary glioneuronal tumor is a recently described central nervous system neoplasm that almost always occurs adjacent to the lateral ventricle. We present a case of this rare entity, representing the 21st case of this lesion, which exhibits a mixed astrocytic and neuronal differentiation. This case was an incidental finding in a young woman who presented secondary to a traumatic injury to the left eye. Histologic evaluation after surgical removal showed a cystic tumor consisting of 2 distinct components: a unique pseudopapillary architecture admixed with foci of solid areas. The pseudopapillae were composed of thick hyalinized vessels enclosed by a single layer of glial fibrillary acid protein-positive astrocytes and variously sized synaptophysin-positive and chromogranin-negative neuronal cells in the interpapillary regions. Abundant Rosenthal fibers, foci of calcification, areas of hemosiderin deposition, gliosis, areas of vascular proliferation associated with piloid gliosis, and chronic inflammatory infiltrate were identified. The combination of cytologic benignity, lack of necrosis, and low proliferative index as evidenced by immunohistochemistry using antibody to Ki-67 confirmed the low malignant potential of this tumor. knowledge and precise classification of this entity are important to avoid unnecessary use of chemo- and/or radiotherapy for treatment.- - - - - - - - - - ranking = 1keywords = vessel (Clic here for more details about this article) |
9/12. Retinal vascular changes in retrograde optic atrophy.Five patients with unilateral optic atrophy of extraocular origin had a normal retinal vasculature. Clinical examination of the patients included color fundus photographs and fluorescein angiography. After comparing the blood vessels in the blind eye with those in the normal fellow eye, we concluded that vascular attenuation is neither invariably associated with optic atrophy, nor solely caused by decreased local oxygen demand in the retina.- - - - - - - - - - ranking = 1keywords = vessel (Clic here for more details about this article) |
10/12. Leaky cystoid macular edema attracting vitreous macrophages.A foveola with signs of atrophy and cystoid edema in an eye with a history of contusion, laceration, and hemorrhage exhibits a selective attraction of blood-filled macrophages. This important observation allows for the conclusion that the avascular foveola can leak into the inner eye like a blood vessel and chemotactically attract vitreous macrophages under these conditions.- - - - - - - - - - ranking = 1keywords = vessel (Clic here for more details about this article) |
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