Introduction. Ophthalmologists worldwide are reporting various ophthalmic manifestations of coronavirus disease 2019 (COVID-19). The most common ocular manifestation is conjunctivitis. Even a rarer complication, retinal vein occlusion may appear in patients with COVID-19. Case presentation. A 52-year-old man was admitted for the right eye. He had been complaining blurred vision several days. co...

High myopia is a common ametropia associated with significant risk of multiple comorbidities. Decreased visual functions myopic patients may be caused by non-specific diseases such as cataracts, glaucoma and rhegmatogenous retinal detachment, which are very likely in myopia. Yet especially important the specific changes atrophic, traction neovascular manifestations pathological myopia, totality...

800x600 unfortunately, at present, degenerative retinal diseases such as retinitis pigmentosa remains untreatable. patients with these conditions suffer progressive visual decline resulting from continuing loss of photoreceptor cells and outer nuclear layers. however, stem cell therapy is a promising approach to restore visual function in eyes with degenerative retinal diseases such as retiniti...

Retinal ischemia causes several vision-threatening diseases, including diabetic retinopathy, retinal artery occlusion, and retinal vein occlusion. Intracellular adenosine triphosphate (ATP) depletion and subsequent induced endoplasmic reticulum (ER) stress are proposed to be the underlying mechanisms of ischemic retinal cell death. Recently, we found that a naphthalene derivative can inhibit AT...

Retinal degenerative diseases are major causes of vision loss and blindness worldwide and are characterized by chronic and progressive neuronal loss. One common feature of retinal degenerative diseases and brain neurodegenerative diseases is chronic neuroinflammation. There is growing evidence that retinal microglia, as in the brain, become activated in the course of retinal degenerative diseas...

purpose: to determine the frequency of risk factors for retinal vein occlusion (rvo) in patients referred to a private clinic in rasht during 1995-2001. methods: this cross-sectional study was conducted on all patients with rvo who were referred to the clinic. sex, age, hypertension (htn), cardiovascular diseases (cvd), diabetes mellitus (dm), hypercoagulable states, glaucoma, smoking, hyperlip...

introduction: there are two basic types of vein occlusion, branch retinal vein occlusion (brvo), in which one of the branches of the main vein is blocked, and central retinal vein occlusion (crvo) in which the main vein of the eye is blocked.  vein occlusions are associated with various illnesses and often occur in elderly. the etiological causes of these diseases in the young people remained c...

Retinal vascular anomalies are a heterogeneous group consisting of congenital and acquired lesions. The visual prognosis varies in wide range from asymptomatic to advanced vision loss according the location lesion. Diagnosis is made by fundus examination, fluorescein angiography, optical coherence tomography. It may be associated with systemic diseases require detailed examination. This review ...