الفهرس 
Location, Symptoms & Causes of giant retinal tearsOnly 14 pages are availabe for public view
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Abstract
Giant retinal tears are defined as a full thickness retinal break that extends to 90 degrees or more around the retinal circumference .retinal dialysis greater than 90 degrees fall into this category.
In most of giant retinal tears it is common to find an inverted retinal flap that complicates the case.
GRTs occur due to multiple causes, it could be idiopathic, traumatic, or associated with certain symptoms like; Marfan’s syndrome, Stickler syndrome, Ehler-Danloes syndrome with high association with myopia.
Good examination and taking history from the patient is important to determine the cause and take the proper management.
Various issues in the management of giant retinal tears require further investigation .the necessity of scleral buckling in conjunction with vitrectomy in uncomplicated, primary cases remains controversial, although clear lens extraction is probably not indicated in many cases.
The postoperative tamponade agent ,whither silicone or gas ,probably has little impact on short- term reattachment rates, but long –term complications and final visual acuities may differ .
Perfluorocarbon liquids, panoramic viewing, and nearly complete removal of the basal vitreous gel are recent innovations that have enhanced the surgical management of retinal detachment secondary to giant retinal tear.
Successful anatomic reattachment is now achieved in more than 90% of uncomplicated cases.
Cases complicated by proliferative vitreoretinopathy, subretinal hemorrhage, traumatic retinal incarceration, and poor visualization are facilitated with current techniques and have an improved prognosis.
A better understanding of the pathogenesis of these tears has fostered recommendations for prophylactic treatment of the fellow eye in high-risk cases.