Cases reported "Vitreous Hemorrhage"

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1/235. Bilateral periopticointrascleral hemorrhages associated with traumatic child abuse.

    PURPOSE: To report a case of bilateral periopticoscleral hemorrhages associated with traumatic child abuse. methods: Postmortem gross examination and histopathologic studies of both eyes and the optic nerves of a 6-month-old infant who died from subdural hematoma. RESULTS: Gross examination and histopathologic step sections disclosed bilateral intrascleral hemorrhages around both optic nerves. In addition, bilateral diffuse multilayered retinal, vitreous, and sublaminar (beneath the internal limiting membrane) hemorrhages were present. CONCLUSION: Periopticointrascleral hemorrhages are characteristic of blunt head trauma and may constitute important forensic evidence in cases of suspected child abuse. ( info)

2/235. Intraoperative ocular damage caused by a cannula.

    We report a case in which posterior capsule rupture, vitreous loss, and vitreous hemorrhage were caused by a dislodged, flying cannula during phacoemulsification. We modified our surgical practice since the occurrence of this unusual complication and use Luer-lock syringes during surgery. This measure should prevent the recurrence of this complication. ( info)

3/235. Intravitreal tPA and SF6 promote clearing of premacular subhyaloid hemorrhages in shaken and battered baby syndrome.

    BACKGROUND AND OBJECTIVE: child abuse is a serious problem in many cultures. The ocular signs of shaken baby include intraretinal, subretinal, and preretinal hemorrhages. The hemorrhages may be unilateral or bilateral and are seen in 50% to 80% of patients. Previous treatment was limited to observation or vitrectomy, but some observed eyes develop amblyopia, and pediatric vitrectomy has many complications. patients: We report 4 eyes in 2 children with shaken baby syndrome in whom we administered intravitreal tissue plasminogen activator (tPA) in an attempt to resolve preretinal hemorrhages earlier than observation alone without the complications of vitrectomy. The tPA dose ranged from 12.5-25 microg per injection. Eyes were injected once weekly for 3 consecutive weeks. Each time 0.25 cc of sulfur hexafluoride gas was also injected. RESULTS: Within 1 week following the last tPA administration, complete resolution of the preretinal hemorrhage was seen. There were no associated ophthalmic complications. CONCLUSION: Intravitreal tPA with an expansive gas is an alternative method to observation or vitrectomy for resolution of preretinal hemorrhages in battered babies and may allow faster resolution of hemorrhages without the complications of vitrectomy. ( info)

4/235. Histopathological findings in proliferative membrane from a patient with sarcoid uveitis.

    BACKGROUND: Sarcoid uveitis is occasionally accompanied by proliferative changes, such as retinal neovascularization and vitreous hemorrhage. Steroid administration, retinal photocoagulation, and vitrectomy may be indicated in such proliferative cases. CASE: A 19-year-old woman presented with proliferative sarcoid uveitis accompanied by recurrent vitreous hemorrhage. OBSERVATIONS: At the initial examination, bilateral vitreous opacity, retinal exudates, mild vitreous hemorrhage, retinal vasculitis, and neovascularization of the retina and optic disc were observed. Although prednisolone was administered and panretinal photocoagulation was performed several times, recurrent vitreous hemorrhage continued. Since the vitreous hemorrhage was not absorbed, pars plana vitrectomy and lensectomy were performed. After surgery, neovascularization and intraocular inflammation decreased, and the corrected visual acuity in the right eye improved to 20/50. Histopathologic analysis of the proliferative membrane removed during surgery revealed substantial neovascularization and numerous neutrophils in the vessels. CONCLUSIONS: Based on these findings, an inflammatory reaction as well as retinal ischemia were thought to be involved in the proliferative changes in this patient. ( info)

5/235. Ophthalmic manifestation of congenital protein c deficiency.

    Under normal conditions activated protein C is a natural anticoagulant that cleaves 2 activated coagulation factors, factor va and factor viiia, thereby inhibiting the conversion of factor X to factor xa and of prothrombin to thrombin. Additionally, activated protein C enhances tissue-plasminogen activator-mediated fibrinolysis by inhibition of plasminogen activator inhibitor-1. This results in an increase in circulatory plasminogen activator levels. protein c deficiency, a genetic or acquired thrombophilic abnormality, has been demonstrated to predispose to episodes of potentially blinding and lethal thromboembolic events. Heterozygous-deficient subjects usually remain asymptomatic until adolescence or adulthood. In homozygous-deficient patients, protein C activity is usually less than 1% (reference range, 70%-140%), resulting in thromboembolism as early as in the neonatal period. The major clinical symptoms in affected newborn infants have been purpura fulminans, vitreous hemorrhage, and central nervous system thrombosis. The age of onset of the first symptoms has ranged from a few hours to 2 weeks after birth, usually after an uncomplicated full-term pregnancy and delivery. In contrast to the genetic form, acquired neonatal protein c deficiency occurs particularly in ill preterm babies. Typical complications of prematurity such as respiratory distress syndrome, necrotizing enterocolitis, and neonatal sepsis may also be present. In the medical literature, there are only a few reports of homozygous protein c deficiency in neonates. We present 2 cases of homozygous protein c deficiency with ocular and extraocular manifestation. ( info)

6/235. Bilateral vitreous hemorrhages in an infant with low fibrinogen levels.

    The finding of retinal or vitreous hemorrhage in a child under age 3 years may cause significant controversy with regard to the etiology, because it raises the suspicion of nonaccidental injury. blood dyscrasias have been documented to cause retinal and vitreous hemorrhages in adults and children, but they have rarely been reported to be the cause of retinal hemorrhages in neonates. We report on a patient with a low plasma fibrinogen level who had bilateral retinal hemorrhage that proceeded to vitreous hemorrhage. This subtle abnormality of the blood clotting cascade caused significant retinal and vitreous hemorrhage in a child without risk factors for abuse. ( info)

7/235. Trans-scleral diode laser photocoagulation in proliferative sickle cell retinopathy.

    OBJECTIVE: To demonstrate the feasibility of trans-scleral diode laser photocoagulation for the treatment of proliferative sickle cell retinopathy. DESIGN: Interventional case report. INTERVENTION: Trans-scleral diode laser scatter photocoagulation was applied to both eyes of a 30-year-old man with hemoglobin sc disease. MAIN OUTCOME MEASURES: Regression of retinal vascular proliferation and of dye leakage on fluorescein angiography. RESULTS: After coagulation, vascular proliferation receded completely. Vitreous bleeding was absorbed. There were no side effects during follow-up (22 months). CONCLUSION: Trans-scleral diode laser photocoagulation proved to be an effective and safe treatment in a case of proliferative sickle cell retinopathy with vitreous bleeding. ( info)

8/235. optic nerve avulsion secondary to a basketball injury.

    optic nerve avulsion secondary to a basketball injury is a rare complication. The patient underwent a vitrectomy for a non-clearing vitreous hemorrhage. The nerve was partially avulsed with multiple choroidal ruptures in the fovea. It was concluded that optic nerve disorders rarely occur after basketball injuries. patients with a dense vitreous hemorrhage may benefit from a vitrectomy although the vision will be limited by the optic nerve disorder. ( info)

9/235. Combined secondary capsulorhexis and vitreous surgery in a case of anterior capsule contraction and vitreous hemorrhage.

    A 59-year-old woman with diabetic vitreous hemorrhage and contracted anterior capsule opening received secondary capsulorhexis and trans pars plana vitrectomy in a single operation. The combined surgery was successful. In addition, the anterior capsule opening was enlarged by the procedure and no further vitreous hemorrhage occurred during the 6 month follow-up period in both eyes. When anterior capsule opening reduction is encountered in patients requiring vitreoretinal surgery, combining secondary capsulorhexis and vitreoretinal surgery together in a single operation maybe provide a good treatment alternative. ( info)

10/235. Preservation of vision through Weiss ring after dense vitreous hemorrhage.

    PURPOSE: To report an unusual case of retained vision through a Weiss ring in the setting of dense vitreous hemorrhage. METHOD: Case report of a 55-year-old woman with a 23-year history of type 1 diabetes mellitus who presented with new onset of blurred vision in the left eye as a result of a dense vitreous hemorrhage. RESULTS: The patient had received full scatter laser photocoagulation for proliferative diabetic retinopathy in the right eye several years earlier and reported previous resolving episodes of vitreous hemorrhage in the left eye. Best-corrected visual acuity in the left eye was hand motions at 3 feet. However, with careful head positioning visual acuity improved to 20/40 through a small clear central island. Examination of the left fundus showed a dense vitreous hemorrhage with a clear, mobile opening in the posterior hyaloid corresponding to the Weiss ring. The retina could be partially visualized only through the area of the Weiss ring. CONCLUSIONS: This unusual case demonstrates the anatomical relationship between the posterior hyaloid and Weiss ring. ( info)
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