نتایج جستجو برای: suprachoroidal hemorrhage
تعداد نتایج: 93779 فیلتر نتایج به سال:
Purpose To determine the effect of injection volume and formulation of a microneedle injection into the suprachoroidal space (SCS) on SCS thickness and closure kinetics. Methods Microneedle injections containing 25 to 150 μL Hanks' balanced salt solution (HBSS) were performed in the rabbit SCS ex vivo. Distribution of SCS thickness was measured by ultrasonography and three-dimensional (3D) cr...
T argeting the suprachoroidal space with surgery is not a new idea. All ophthalmologists are aware of the effect on intraocular pressure (IOP) of a cyclodialysis cleft following trauma. A small gap between the iris root and the scleral spur can cause devastating hypotony and be difficult to manage. In 1900, Ernst Fuchs, MD,1 and Leopold Heine, MD,2 both described the inadvertent and deliberate ...
Small portions of dehydrated hydrophilic polymer (HPU 90, Smith and Nephew) have been inserted into the suprachoroidal space in rabbits to investigate the possible use of suprachoroidal plombage in retinal detachment surgery. As it hydrates, the material causes a pronounced elevation of choroid and retina, and the implants have been well tolerated for periods of up to one year in experimental a...
Cataract surgery is a procedure performed on a high number of patients in prolonged antithrombotic treatment.1 Over 28% of these patients take aspirin, 2% are in treatment with clopidogrel and over 5% are anticoagulated.2 It is well known that interrupting the use of anticoagulants during surgery could increase the risk of thromboembolism. For example, the annual cerebrovascular accident risk i...
Herein, we report a case of abrupt suprachoroidal hemorrhage (SCH) that developed during peritoneal dialysis in a patient with proliferative diabetic retinopathy. A 53-year-old female patient visited our clinic with blurred vision due to vitreous hemorrhage and proliferative diabetic retinopathy. Her medical history included diabetes, hypertension, chronic renal failure, and she had received sc...
PURPOSE To estimate retrospectively the incidence, predisposing factors, and possible mechanisms precipitating massive suprachoroidal hemorrhage (MSCH) development during cataract extraction surgery. METHODS The study was conducted on 6639 consecutive cataract extractions performed between 1994 and 2002. All of the procedures were carried out using traditional nucleus expression methods. The ...
PURPOSE To assess the safety and efficacy of chronic electrical stimulation of the retina with a suprachoroidal visual prosthesis. METHODS Seven normally-sighted feline subjects were implanted for 96-143 days with a suprachoroidal electrode array and six were chronically stimulated for 70-105 days at levels that activated the visual cortex. Charge balanced, biphasic, current pulses were deliv...
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