Combined Central Retinal Vein Research Articles

COMBINED CENTRAL RETINAL VASCULAR OCCLUSION AS THE PRESENTING FEATURE IN β-THALASSEMIA WITH IRON DEFICIENCY ANEMIA.

To report a case of β-thalassemia trait with iron deficiency anemia presenting as a combined central retinal vein and artery occlusion. Case report. A 22-year-old woman presented with sudden-onset blurry vision in the left eye of 3-day duration. Best-corrected visual acuity was 20/20 and 20/1000 in right and left eyes, respectively. Fundus examination of the left eye revealed optic disk edema, macular whitening with a cherry-red spot, markedly dilated and tortuous retinal veins, and hemorrhages both around the disk and extending into the macula and the periphery. Fundus fluorescein angiography showed delayed filling of retinal vasculature, dilated and tortuous retinal veins, and blocked fluorescence around and beyond the optic disk. Optical coherence tomography scan at presentation showed hyperreflective inner retinal layers with neurosensory detachment. Optical coherence tomography angiography showed that the vessel densities of superficial and deep capillary plexus were remarkably reduced. A diagnosis of β-thalassemia trait combined with iron deficiency anemia was made after hematologic workup. The patient was treated with a course of oral iron supplements, vasodilator (compound Xueshuantong), inhalation of a mixture of 5% carbon dioxide and 95% oxygen, and a nutritional agent (compound anisoine). Six months later, her visual acuity improved to 20/60 in the left eye with complete resolution of all clinical signs. Combined central retinal vein and artery occlusion is a rare emergency leading to acute vision loss and can manifest in patients with β-thalassemia trait with iron deficiency anemia. Prompt diagnosis and early management is important to treat underlying systemic disorders and to prevent occurrence of a similar episode in fellow eye.

Case report: A case of unilateral combined central retinal vein occlusion, incomplete central retinal artery occlusion, and papillitis following a third dose of COVID-19 vaccination

PurposeThe aim of this study was to present a case of severe visual loss due to retinal arteriovenous occlusion and papillitis in one eye following vaccination against coronavirus disease (COVID-19).MethodsA 45-year-old man undergoing treatment for hypertension had severely reduced visual acuity in the right eye 1 day after receiving a third dose of a COVID-19 vaccine manufactured by Moderna. Clinical examination showed that the best-corrected visual acuity in the right eye was counting fingers. Other findings included circumferential retinal hemorrhage, perimacular ischemic color, severe macular edema, and severe optic disc swelling, indicating the presence of central retinal vein occlusion, incomplete central retinal artery occlusion, and papillitis. Based on the possibility of post-vaccination inflammation and/or abnormal immune response, three courses of steroid pulse therapy were administered, and the visual acuity slightly improved to 20/1,000.ResultsThree months after the onset of symptoms, macular edema disappeared; conversely, retinal thinning of the macula and extensive non-perfusion areas mainly on the nasal side were noted.ConclusionThe findings in this case suggest that inflammation and abnormal immune response after receiving a COVID-19 vaccination may lead to combined retinal arteriovenous occlusion and papillitis.

Central retinal vein and artery occlusion associated with sildenafil: a case report and review of the literature

BackgroundSildenafil is a selective phosphodiesterase type 5 inhibitor used for the treatment of erectile dysfunction and pulmonary hypertension. It is available over the counter in many countries. While there have been a few reports of retinal vascular occlusion following sildenafil consumption, most cases have other comorbidities as risk factors for the disease, and the exact causal role of this drug in these conditions remains unclear.Case presentationWe present the case of a healthy 32-year-old Iranian man who developed combined central retinal vein occlusion and retinal artery occlusion following sildenafil exposure. The patient underwent a hypercoagulative state workup for possible underlying risk factors. Additionally, we conducted a literature search on PubMed using the keywords: retinal vein occlusion AND Sildenafil OR Viagra, retinal artery occlusion AND Sildenafil OR Viagra, retinal vascular occlusion AND Sildenafil OR Viagra. To obtain more objective results in the reviews, we employed an adverse drug reaction possibility algorithm. The patient was found to be otherwise healthy, and ancillary tests were unremarkable. A literature review identified seven reports of retinal vascular occlusion following sildenafil use. In most of these cases, the role of sildenafil was not clearly established. To the best of our knowledge, our case achieved the highest score based on the algorithm compared with previous reports.ConclusionSildenafil may be associated with severe retinal vascular accidents in otherwise healthy young individuals.

Henle fiber layer hemorrhage associated with combined central retinal vein occlusion and cilioretinal artery occlusion: a case report

BackgroundThe purpose of this study is to describe a patient who experienced simultaneous central retinal vein and cilioretinal artery occlusions, as well as perifoveal hemorrhage in the Henle fiber.Case presentationA 67-year-old Iranian woman presented with a 3-day history of reduced vision in her left eye. Venous tortuosity and retinal hemorrhage were observed in the retina, together with whitened regions around the fovea, consistent with the diagnosis of central retinal vein occlusion in conjunction with cilioretinal artery occlusion. In structural and en face optical coherence tomography, star-shaped hemorrhages were observed around the fovea, which looked hyperreflective in the Henle fiber layer.ConclusionsWe present a case of central retinal vein occlusion exacerbated by cilioretinal occlusion and hemorrhage in the Henle fiber layer. The hemorrhage is most likely the result of increased intraluminal pressure in the deep capillary plexus.

Combined central retinal vein occlusion and cilioretinal artery occlusion as the initial presentation of frosted branch angiitis: a case report and literature review

PurposeTo report a case of combined central retinal vein occlusion (CRVO) with cilioretinal artery occlusion (CLRAO) that heralded the development of frosted branch angiitis (FBA).Case reportA 25-year-old healthy male presented with sudden painless visual loss in his left eye with a visual acuity (VA) of 20/300. Fundus exam and fluorescein angiography showed signs of combined CRVO and CLRAO. Without treatment, his vision gradually improved until it reached 20/30 within four months. Five months after initial presentation, he returned with severe visual loss (20/400) in the same eye and a clinical picture of severe occlusive periphlebitis resembling a frosted branch angiitis pattern associated with severe macular edema. This was promptly and successfully treated with systemic steroids and immunosuppressive medications.ConclusionCRVO in young population can have an unusual course and one should carefully rule out underlying uveitic etiologies in each visit. Clinical suspicion and close follow‑up are required for early detection and timely management of FBA.

A rare simultaneous presentation of combined occlusion and optic neuritis in a lupus erythematosus patient with anti-phospholipid antibody syndrome.

A known case of Systemic Lupus Erythematosus (SLE) developed sudden loss of vision (no light perception) with relative afferent pupillary defect in her right eye (RE) and fundus examination revealed cherry red spot over tomato splash background with tortuous and dilated veins suggestive of combined central retinal arterial and vein occlusion. Left eye (LE) had 6/6 vision but posterior segment revealed a hyperemic disc. Fundus fluorescein angiography (FFA) revealed delayed arm to retina time and increased arterial to vein transit time in RE. LE showed pooling of dye around optic disc suggestive of SLE related Optic neuritis. Patient was re-evaluated and she tested positive for Lupus anticoagulant. Patient was diagnosed to have anti-phospholipid antibody syndrome (APS) occurring secondary to SLE. She was started on intra venous steroids, anti-coagulants and disease progression in left eye was controlled. We report a rare simultaneous presentation of complete combined occlusion of central retinal artery and vein (CCRAVO) in RE and Optic neuritis in LE which has not been reported in literature so far. Ocular involvement may precede other systemic symptoms in SLE, so ophthalmologist should know about this rare simultaneous presentation. Ocular activity can correlate with systemic disease activity and starting early effective treatment can prevent other systemic lesion and can be life saving.

Bilateral optic nerve infiltration in high-grade systemic lymphoma with secondary combined central retinal artery and vein occlusions.

In Brief Bilateral lymphomatous optic nerve infiltration initially presented with mild unilateral optic nerve swelling without signs of infiltration, which then rapidly progressed into bilateral severe optic nerve swelling and infiltration with combined central retinal artery and vein occlusion resulting in complete blindness despite urgent high-dose corticosteroids infusions, radiotherapy and chemotherapy.

Unilateral optic neuritis with contralateral central retinal artery and central retinal vein occlusion in a post-COVID-19 case of rhino-orbital-cerebral mucormycosis: An unusual presentation

Introduction: The corona virus disease (COVID)-19 is a severe acute respiratory syndrome (SARS-CoV-2) which is posing a great threat to mankind and has been associated with a high risk of opportunistic fungi infection presenting as rhino-orbital-cerebral-mucormycosis. We report a rare and never reported case of unilateral optic neuritis with contralateral central retinal artery (CRA) and central retinal vein (CRV) occlusion in a patient of post-COVID-19 rhino-orbital-cerebral-mucormycosis. Case Report: A 45-year-old diabetic, Indian gentleman reported to our clinic in Dehradun, Uttarakhand, India with complaints of bilateral diminution of vision in right eye (RE) five days and left eye (LE) five weeks duration. He provided recent history of COVID-19 infection for which he was hospitalized and treated. Fundus examination confirmed optic neuritis in right eye and a combined established central retinal artery and vein occlusion in left eye. Fundus fluorescein angiography, visual evoked potential, and magnetic resonance imaging (MRI) were crucial in clinching the diagnosis. Conclusion: Rhino-orbital-cerebral-mucormycosis invades tissue through multiple routes. However, it is extremely rare to see a combination of angioinvasion leading to visual loss in one eye and perineural spread leading to optic neuritis and visual loss in the contralateral eye. Clinicians must be aware of such rare presentations which could serve as benchmark in diagnosis and treatment.

Idiopathic combined retinal vessels occlusion in a pregnant woman: a case report

BackgroundOcular vascular occlusion is an extremely rare event, especially in the young population. This diagnosis is always associated with active systemic diseases in young adults and needs thrombophilia workup. Nevertheless, we present the case of a pregnant woman suffering from idiopathic combined central retinal vein and cilioretinal artery occlusion.Case presentationA 36-year-old pregnant Iranian woman at the 36th week of her second pregnancy complained of subacute unilateral painless decreased vision of her left eye. She had experienced a transient vision loss that lasted several minutes, but attacks gradually became more frequent and finally persistent over a several-day period. Finally combined central retinal vein and cilioretinal artery occlusion was established. Her visual acuity improved to 4/10 in a month without any ocular intervention except for a short duration of prophylactic dose enoxaparin, and the acuity reached 8/10 without any complications in the third month follow-up visit. At 1 year follow-up, the visual acuity had not changed and no macular edema was seen.ConclusionsOcular vascular occlusion is extremely rare among young adults, and even rarer among pregnant women. According to this, any suspected retinal vascular event in this population should raise suspicion for underlying diseases such as hypertension, diabetes, autoimmune diseases, migraine, preeclampsia syndrome, and thrombophilia. However, as seen in this presented case, idiopathic ocular vascular occlusion events can occur also.

Heterozygous factor V Leiden mutation manifesting with combined central retinal vein occlusion, cilioretinal artery occlusion, branch retinal artery occlusion, and anterior ischaemic optic neuropathy: a case report

BackgroundOur purpose was to describe a patient who developed combined central retinal vein occlusion (CRVO), cilioretinal artery occlusion, branch retinal artery occlusion (BRAO), and anterior ischaemic optic neuropathy (AION) followed by CRVO in the second eye because of the heterozygous factor V Leiden (FVL) mutation.Case presentationA 39-year-old female with a history of recurrent pregnancy losses presented with acute blurred vision in the right eye (RE), with visual acuity limited to counting fingers. She was diagnosed with combined impending CRVO, cilioretinal artery occlusion, BRAO, and AION. The results of thrombophilia testing, not including the FVL mutation, were negative. Retinal atrophy with vascular attenuation and optic disc pallor developed after resolution of acute retinal findings. Nine months after initial presentation, the patient developed an impending CRVO in the left eye (LE), with a secondary progression to a complete CRVO causing a decrease in best corrected visual acuity (BCVA) to 20/40. The patient was determined to be heterozygous for the FVL mutation. She subsequently was treated with acenocoumarol. At the last follow-up visit, the BCVA was 20/400 in the RE and 20/20 in the LE, and there was a complete resolution of the acute CRVO findings in the LE.ConclusionOur case shows that the heterozygous FVL mutation may manifest with combined retinal vascular occlusion involving multiple sites in both eyes. Early recognition of such an inherited thrombophilic disorder is important because it implies the need for long-term anticoagulative therapy to reduce the patient’s risk of recurrent, sight-threatening and life-threatening thrombotic events.

Syphilis induced inflammatory combined central retinal vein and artery occlusion

Syphilis induced inflammatory combined central retinal vein and artery occlusion

Combined Central Retinal Artery and Vein Occlusion with Ischemic Optic Neuropathy After COVID-19 Vaccination

PurposeTo report a case of combined central retinal vein and artery occlusion that evolved into ischemic optic neuropathy following the Pfizer COVID-19 vaccination.MethodsPatient was followed with optical coherence tomography (OCT), fluorescein angiography, and Humphrey visual field.ResultsPatient was able to recover vision from count fingers to 20/30 on a combination of aflibercept, steroidal and non-steroidal anti-inflammatories, a diuretic (acetazolamide), antiplatelet agents (aspirin and pentoxifylline), and an anticoagulant (apixaban).ConclusionCOVID-19 vaccination may be associated with a myriad of sight-threatening ocular thrombotic conditions, which may respond to a combination of anti-inflammatory and anticoagulant therapies.

Combined Retinal Artery and Vein System Occlusions

Four different clinical types have been reported for combined retinal artery and vein occlusions: Combined central retinal artery and central retinal vein occlusion, combined branch retinal artery and central retinal vein occlusion, combined cilioretinal artery and central retinal vein occlusion, and combined branch retinal artery and branch retinal vein occlusion. Cases with combined retinal artery and vein system occlusions are rare. Since these occlusions are generally associated with underlying cardiovascular and hypercoagulable conditions, cases should be evaluated in terms of these risk factors. The spread of ischemia and the state of the macula determines the prognosis and the efficiency of treatment in the combined artery and vein system occlusions.

Clinical Features of Combined Central Retinal Artery and Vein Occlusion.

Purpose To describe the clinical features of combined central retinal artery and vein occlusion (CCRAVO). Methods This retrospective study included 33 admitted patients (33 eyes) who had CCRAVO. Clinical data, such as age, gender, best-corrected visual acuity (BCVA), intraocular pressure (IOP), findings on fundus color photography and fundus fluorescein angiography (FFA), and information about follow-up, were collected and analyzed. Results The age of the patients with CCRAVO ranged from 22 to 78 years, with a mean of 48.8 ± 14.1 years. At presentation, BCVA of the involved eyes ranged from no light perception (NLP) to 20/20. In addition, 45.5% (15/33) of the eyes had BCVA of finger counting (FC) or below, whereas 12.1% (4/33) had BCVA of 20/60 or above. The IOP was lower in the involved eyes than in the fellow eyes (15.0 ± 3.0 mmHg vs. 16.4 ± 2.3 mmHg, p=0.03). Ophthalmoscopic examination showed changes in both central retinal artery occlusion (CRAO) and central retinal vein occlusion (CRVO), including retinal hemorrhage, retinal ischemic whitening, optic disc hyperemia and/or edema, venous dilation and tortuosity, cotton wool spot (CWS), and Roth's spot. FFA showed prolonged arm-to-retina time (ART) and retinal arteriovenous passage time (RAP) (17.1 ± 4.9 s and 12.1 ± 8.8 s, respectively). Capillary nonperfusion (CNP) was seen in 21 eyes (63.6%), and in 14 (42.2%) of these, CNP was larger than 10 disc areas. At 2 to 3 weeks after presentation, BCVA improved in 23 eyes (71.9%) and further deteriorated in 5 eyes (15.6%). Retinal ischemic whitening improved in more than half of the eyes, whereas retinal hemorrhage increased in nearly half of the eyes. Follow-up ranged from 6 to 56 months. Seven patients were lost to follow-up. At final follow-up, six eyes had a visual acuity of 20/60 or greater, but 6 eyes had FC or worse. Four eyes developed neovascularization on follow-up. Conclusion CCRAVO is a sight-threatening entity. Manifestations of CRAO and CRVO can be seen simultaneously in the early stage of disease, and CRVO may play a more important role in the development of CCRAVO.

Combined central retinal artery and vein occlusion; first manifestation of lupus in a pediatric patient

Combined central retinal artery and vein occlusion is uncommon in adults and even more so in young people. The main origins are vasculitis and thromboembolic disorders. The prognosis is poor due to irreversible visual loss and the development of neovascular glaucoma (NVG). A 14 year-old male arrived at the clinic complaining of sudden and painless visual loss in the left eye. Best corrected visual acuity was light perception with clinical and fluoro-angiographic findings characteristic of combined central retinal artery and vein occlusion in his left eye. The findings in the systemic and laboratory studies led to a diagnosis of systemic lupus erythematosus (SLE) and antiphospholipid syndrome. The patient received treatment with steroids and oral anticoagulant. Seven days later, due to prolonged coagulation time, he presented with a vitreous haemorrhage. He was then treated with intravitreal ranibizumab in order to prevent NVG. Afterwards, vitrectomy and retinal endophotocoagulation were performed. To the best of our knowledge, this is the first presentation of a male, paediatric with SLE and combined occlusion to be published in the literature, and is also the first case treated with antiangiogenic agents that has not developed NVG at 12 months of follow-up.

Oclusión mixta de arteria y vena central de la retina; primera manifestación de lupus en paciente pediátrico

Combined central retinal artery and vein occlusion is uncommon in adults and even more so in young people. The main origins are vasculitis and thromboembolic disorders. The prognosis is poor due to irreversible visual loss and the development of neovascular glaucoma (NVG).A 14 year-old male arrived at the clinic complaining of sudden and painless visual loss in the left eye. Best corrected visual acuity was light perception with clinical and fluoro-angiographic findings characteristic of combined central retinal artery and vein occlusion in his left eye. The findings in the systemic and laboratory studies led to a diagnosis of systemic lupus erythematosus (SLE) and antiphospholipid syndrome. The patient received treatment with steroids and oral anticoagulant. Seven days later, due to prolonged coagulation time, he presented with a vitreous haemorrhage. He was then treated with intravitreal ranibizumab in order to prevent NVG. Afterwards, vitrectomy and retinal endophotocoagulation were performed.To the best of our knowledge, this is the first presentation of a male, paediatric with SLE and combined occlusion to be published in the literature, and is also the first case treated with antiangiogenic agents that has not developed NVG at 12 months of follow-up.

Unilateral Adult Xanthogranulomatous Infiltration of the Conjunctiva, Limbus and Sclera Leading to a Combined Ophthalmic Artery and Central Retinal Vein Occlusion.

Objective:To describe the features of a female patient with a biopsy-proven xanthogranulomatous infiltration of the conjunctiva, limbus and sclera who had an exudative retinal detachment, combined ophthalmic artery and central retinal vein occlusion unilaterally.Method:A-53-year old otherwise healthy woman presenting with a painful visual loss in her right eye underwent an ophthalmic examination, meticulous systemic work-up and histopathologic assessment.Results:Ophthalmic examination revealed multiple subconjunctival masses, upper limbal infiltrations, trace cells in the anterior chamber, pale looking posterior fundus, 360 degree scattered retinal hemorrhages and marked exudative retinal detachment in her right eye. Left eye was completely normal.A biopsy taken from one of the subconjunctival masses demonstrated a diffuse infiltration of the histiocytes and this was interpreted as a xanthogranulomatous infiltration with the help of immunohistochemical staining techniques.Conclusion:Present case is the only reported adult case with xanthogranulomatous-like infiltration of the eyeball featuring both anterior and posterior segment involvement without any concomitant major systemic disturbances.

Combined Central Retinal Vein and Branch Retinal Artery Occlusion Post Intense Physical Activity

We report a case of combined central retinal vein occlusion and branch retinal artery occlusion. A previously healthy 47-year-old male presented with decreased vision in the right eye after completing a half marathon. A fundus exam and retinal imaging revealed a combined central retinal vein and branch retinal artery occlusion.In the present report, we review the literature and discuss the possible mechanisms behind combined retinal vessel occlusions.To our knowledge, this is the first reported case of combined central retinal vein occlusion and branch retinal artery occlusion following intense exercise.

Concurrent Central Retinal Artery and Vein Occlusion in a Pediatric Patient

Abstract Purpose: To describe a rare case of combined central retinal artery (CRAO) and vein occlusion (CRVO) in pediatric patient. Case report: We report a case of mixed right eye CRAO and CRVO in a healthy young girl. A nine- year-old child presented with right eye sudden loss of vision. Upon presentation vision was counting finger at 1 feet. Afferent pupillary defect was positive. Fundus examination revealed pre-retinal and retinal hemorrhages in all 4 quadrants with pale retina and cherry red spot. All blood test results were normal except elevated erythrocyte sedimentation rate and complement (C3, C4) level. Fluorescence angiogram revealed delayed arm to retina time, venous filling and large area of capillary fallout. Her right eye vision improved to 1/60 with intravenous steroids. Conclusion: Combined CRAO and CRVO is possible in a healthy children. Thorough investigations should be done to sought the cause and hence proper management applied

“Dye front reciprocation” in combined central retinal vein occlusion with cilioretinal artery infarction

“Dye front reciprocation” in combined central retinal vein occlusion with cilioretinal artery infarction