Showing papers on "Retinal Vein published in 1991"

Hamodilution bei patienten mit zentralvanenthrombose der retina : eine plazebokontrollierte randomisierte studie

Abstract: A randomized placebo-controlled study was conducted in 40 patients with acute retinal vein occlusion, 19 of whom received iso-(Hct≥42%) or hypervolemic (Hct<42%) hemodilution over 10 days with daily infusion of 250 ml hydroxyethyl-starch (MW 200000/0.5, 10% HAES-steril) in combination with pentoxifylline (oral: 1200 mg/day; i.v.: 300 mg/day; Trental)

Papillitis, retinal neovascularisation and recurrent retinal vein occlusion in Toxoplasma retinochoroiditis: a case report with uncommon clinical signs.

Abstract: A clinical case report, illustrative of three uncommon features of ocular toxoplasmosis, is presented. The unusual signs were recurrent retinal vein occlusion, papillitis and florid disc neovascularisation.

Akute Durchblutungsstörungen des Auges: Klinische Befunde und Ergebnisse der Doppler-Sonographie der A. carotis Interna

Abstract: Clinical and Doppler sonographic findings on the internal carotid artery of 218 patients with acute central retinal artery obstruction (42), branch retinal artery obstruction (43), anterior ischemic optic neuropathy (AION) (51), amaurosis fugax (AF) (21), and retinal vein occlusions (61) were evaluated

Congenital retinal macrovessel

Abstract: Congenital retinal macrovessel is a rare condition in which anomalous retinal vessels cross the macula. Visual impairment can result if the anomalous vessels pass across the foveola, if foveolar cysts form, or if hemorrhage occurs. A now 17-year-old African-American female has an anomalous retinal vein that crossed the macular region beyond the horizontal raphe in her left eye. This patient exhibited the classic characteristics of congenital macrovessels. Her visual acuity remained unaffected after a 5-year follow-up and therefore treatment was not required.

Hyperbaric oxygen treatment for cystoid macular edema secondary to retinal vein occlusion

Abstract: A prospective study was made to estimate the effect of hyperbaric oxygen (HBO) on 14 eyes of cystoid macular edema (CME) secondary to retinal vein occlusion. The visual acuity was improved 2-6 lines (average 3.6 lines) after the treatment, while the control group of 12 cases showed little improvement. The therapeutic effect was stable, however, fluorescein angiography showed no leakage reduction from the perifoveal capillaries, or visual function was enhanced prior to eventual improvement in the fundus. Since HBO therapy has few contraindications nor side effects, it is an effective modality in the treatment of CME.

Macular edema in retinal vein occlusion

Abstract: Venous occlusion causes retrograde intravascular hyperpression resulting in a rupture of the inner hematoretinal barrier and sometimes in capillary occlusions. The various clinical types of venous thrombosis which result from various degrees of intravascular hyperpression have different prognoses. The laser treatment of macular edema secondary to venous occlusion is recommended under certain conditions.

Value of Doppler carotid artery sonography in ophthalmologic diagnosis

Abstract: We report the clinical and Doppler sonographic findings on the internal carotid artery in 230 patients with various purely ocular vascular symptoms. For evaluation, the patients were subdivided into four groups: group I (107): central retinal artery obstruction (CRAO) (13), branch retinal artery obstruction (BRAO) (31), amaurosis fugax (AF) (13), anterior ischemic optic neuropathy (AION) (50); group II: retinal vein occlusion (25); group III: "low-tension glaucoma" (55); group IV: chronic open-angle glaucoma with a possible vascular co-factor (43). In group I with signs of arterial ocular mal-perfusion; 29.5% of cases with CRAO and BRAO revealed significant stenosis or complete obstruction of the ipsilateral internal carotid artery. Only 4 of 50 cases (8.0%) with AION showed positive findings. A remarkable result of this evaluation is the coincidence that nearly all high-grade obliterations and obstructions of the internal carotid arteries diagnosed in this study were exclusively confined to eyes with very severe ischemic changes in both anterior and posterior segments. In no other case was localization or extent of the obstructive process in the internal carotid artery predictive. Venous retinal obstructions with only 16% positive findings did not show any correlation with arterial occlusive disease of extracranial vessels based on demographic aspects and clinicopathological studies. Also no etiological correlation could be detected in either of the glaucoma groups (III and IV).

Retinal nerve fiber layer photography in retinal vein occlusion

Abstract: In six eyes we found typical signs that could serve as criteria for the differentiation of ischemic from non-ischemic retinal branch vein occlusion. Perimetry showed a mean defect (in the affected area) of more than 10 dB in eyes with defects in the retinal nerve fiber layer in contrast with 5 dB on one eye without nerve fiber defects. Secondly, fluorescein angiography showed ischemic areas in all eyes examined with localized defects in the photographs of the retinal nerve fiber layer. Damage of the retinal nerve fiber layer was observed before capillary obliteration could be detected by fluorescein angiography. Thirdly, semiquantitative optic disc morphometry demonstrated that using the difference between pallor and excavation as the only sign in ascending optic atrophy is not always useful. Fourthly, photography of the retinal nerve fiber layer showed that there is no correlation between the extension of the ischemic area and the sector angle of the defect of the retinal nerve fiber layer. Photography of the retinal nerve fiber layer can differentiative ischemic from non-ischemic retinal branch vein occlusion because of the qualitative detection of localized retinal nerve fiber layer defects. Consequently, this method is not only of great clinical importance for the diagnosis of different optic lesions, but is also useful for the prognosis and management of occlusion of the retinal branch vein.