Upender Krishen Wali

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Functional Endoscopic Sinus Surgery (FESS) is a highly sophisticated type of surgery, which has revolutionized the surgical management of chronic sinus diseases. In the ophthalmic field, FESS plays a crucial role in the management of a few conditions, but not without risks. Ophthalmic complications associated with FESS are well documented. They mainly occur(More)
Sebaceous gland carcinoma, commonly arises in the periocular area, is an uncommon condition. It represents 1-5.5% of eyelid malignancies and is considered to be the third most common eyelid malignancy after basal cell and squamous cell carcinomas, although few reports placed this tumor as second most common after basal cell carcinoma. It usually affects(More)
BACKGROUND The second most frequent treatable cause of noninfectious blindness in Oman is high-pressure glaucoma. Therefore, in 2002 a study was performed at our department of ophthalmology to evaluate pseudoexfoliation (PEX) in glaucoma patients. METHODS In a prospective comparative cohort study, of 204 glaucoma eyes, 135 open-angle glaucomas were(More)
Mucormycosis is an uncommon fungal infection which can lead to fulminant necrotizing infection under optimal host condition. Fungi have the ability to invade blood vessels and can affect different parts of the body. The most common, though the most aggressive, form is cerebro-rhino-orbital mucormycosis that occurs in debilitated patients, in conjunction(More)
Behçet disease is an idiopathic, multisystem disorder characterized by recurrent episodes of orogenital ulceration and vasculitis of the veins and arteries of all calibers. Ocular involvement may affect the conjunctiva, sclera, uveal tract, vitreous, blood vessels, and retina. Many theories have pointed toward an autoimmune response behind its pathogenesis,(More)
Bacterial keratitis is an acute or chronic, transient or recurrent infection of the cornea with varying predilection for anatomical and topographical parts of the cornea like marginal or central. It is a potentially sight-threatening corneal infection in humans that is generally found in eyes with predisposing elements, the most common of which is contact(More)
OBJECTIVE Pseudoexfoliation (PEX) syndrome is one of the leading causes of secondary open angle glaucoma and blindness. This study explored whether in PEX eyes, preoperative changes in corneal endothelial cell morphology might be a risk factor for postoperative corneal decompensation. METHODS One hundred twenty six eyes of 69 preoperative cataract(More)
BACKGROUND There is no proven effective treatment for vision loss in central retinal vein occlusion (CRVO). Bevacizumab has been reported in small series with limited follow-up, to have a positive effect in reducing cystoid macular edema (CME) and improving vision in CRVO. PURPOSE To report long-term results with the use of bevacizumab in CRVO. (More)
PURPOSE To measure, quantify and compare Ocular Aberrations due to nuclear cataracts. SETTING Department of ophthalmology and school for ophthalmic technicians, college of medicine and health sciences, Sultan Qaboos University, Muscat, Oman. DESIGN Retrospective case controlled study. METHODS 113 eyes of 77 patients with nuclear cataract (NC) were(More)