Diplopia Charting Diplopia chart is the record of separation of the diplopic or double images in the nine positions of gaze. It can be plotted charted in patients who cooperate and can appreciate the double vision and with incomitant or comitant deviation. The method The patient should be comfortable with his head erect and should preferably be still throughout the examination. The test is prefera...Read More
Review
Viral uveitis has myriad presentations. They may present as anterior uveitis, intermediate uveitis, acute retinal necrosis (ARN), progressive outer retinal necrosis (PORN) and neuroretinitis. The causative viruses mainly include herpes group of viruses and human immunodeficiency virus (HIV). Other DNA viruses which cause uveitis are poxviruses, adenoviruses especially those that produce epidemic k...Read More
Introduction Recent advances in the pathogenesis, classification, and surgical intervention of idiopathic macular holes have generated a renewed interest in this entity. Better indicators of the visual outcome, as well as refinements in the surgical technique, have led to improvements in the success of macular hole surgery. Clinical characterization and theories on the pathogenesis of macular hole...Read More
Eales Disease: Current Concepts in Etiopathogenesis and Management
Introduction Eales’ disease is an idiopathic retinal periphlebitis that primarily affects the peripheral retina in young adults. Eales’ disease was first described by Henry Eales, a British ophthalmologist, in 1880 and 1882.1,2 He found it in seven young, male patients ranging in age from 14 to 29 years with recurrent vitreous hemorrhage. In addition, these patients had history of headache, variat...Read More
Malarial Retinopathy: A Diagnostic Clue
Introduction Malaria is the most important of parasitic diseases of humans and remains today, as it has been for centuries a large burden on tropical communities. Cerebral malaria is the most important complication of falciparum malaria and also the leading cause of death in malaria 1. It is defined as an acute, symmetric encephalopathy associated with sequestration of parasite-infected erythrocyt...Read More
Perfluorocarbons in Ophthalmology
INTRODUCTION Perfluorocarbon liquids (PFCLs) were first developed in 1970s as possible substitutes to erythrocytes[1],[2] because of their capacity to dissolve relatively large amounts of oxygen. Initial trials with these compounds focused on their feasibility to be used as blood substitutes. These experiments proved the biocompatibility of these compounds. Based on their properties, they were the...Read More
Optical Coherence Tomography- Evolution and Clinical Applications
1. Introduction Optical coherence tomography (OCT) is a noninvasive imaging modality that has revolutionized the practice of clinical ophthalmology over the past decade. OCT provides high-resolution cross-sectional images of the retina, optic nerve head and retinal nerve fibre layer (RNFL) unobtainable by any other current modality, and enables qualitative and quantitative evaluation. As opposed t...Read More
Management of Subluxated cataract
Zonular compromise complicates every step of cataract surgery and poses a serious challenge in terms of safety and visual outcome. When the lens is displaced from its normal position, it is considered subluxated if it remains in the pupillary area and luxated or dislocated if it is completely displaced from the pupil. Ectopia lentis is the term used to describe congenital dislocations.1 Lens displ...Read More
Seasonal Hyperacute Panuveitis (SHAPU)
Introduction: Seasonal Hyperacute Panuveitis (SHAPU) is a mysterious eye disease with grave prognosis, reported only from Nepal. Though it was reported for the first time in 1975,1-3 no definite etiopathogenesis has been established to date. It occurs as an outbreak in certain regions of Nepal in a cyclical pattern during the autumn season and peaks during the winter season (August–December) only ...Read More
Epiretinal membranes(ERM) are acquired formation of semi-transparent cellular sheets on the macular surface, which are formed due to varied etiologies. These membranes have contractile properties, often leading to mechanical distortion of macula. The proliferation of ERM on the inner retinal surface along the internal limiting membrane was first described by Iwanoff in 1865 1. In 1971, Roth and Fo...Read More