نتایج جستجو برای: heavy silicone oil
تعداد نتایج: 269067 فیلتر نتایج به سال:
PURPOSE To determine the interaction of heavy silicone oil with various intraocular lens (IOL) materials and whether heavy silicone oil covers the silicone IOL optic as silicone oil does. SETTING Department of Ophthalmology, Dokuz Eylul University, Izmir, Turkey. METHODS The study group comprised 5 poly(methyl methacrylate) (PMMA) IOLs, 4 foldable silicone IOLs, 5 foldable hydrophilic acryl...
Heavy silicone oils show potential in management of inferior retinal detachments R et in a U pd at e
HEAVY silicone oils have shown promising results in the treatment of retinal detachments in the inferior quadrant in several studies. However, their use remains controversial, attendees at a symposium at the 7th EURETINA Congress heard. Proponents of silicone oil say that the specific gravity of these compounds makes them more efficient than conventional silicone oils in providing inferior tamp...
PURPOSE To report a case of early decomposition of retained heavy silicone oil droplets. CASE REPORT The single highly myopic eye of a 16-year-old boy with history of scleral buckling and buckle revision developed redetachment due to inferior retinal dialysis. The patient underwent pars plana vitrectomy and injection of heavy silicone oil. Early emulsification of the silicone oil was observed...
OBJECTIVE To demonstrate attenuation of radiation from iodine 125 ((125)I) to intraocular structures using liquid vitreous substitutes. METHODS Four candidate vitreous substitutes were tested for attenuation using empirical measurement and theoretical calculation. In vitro and ex vivo cadaveric dosimetry measurements were obtained with lithium fluoride thermoluminescent dosimeters to demonstr...
PURPOSE To determine and compare the refractive shifts based on Gullstrand-Emsley and Liou-Brennan schematic eyes after filling them with four selected artificial vitreous substitutes: silicone oil, heavy silicone oil, hydrogels, and encapsuled balanced salt solution. METHODS The optical constants of artificial vitreous body-filled eyes were calculated based on Gullstrand-Emsley and Liou-Bren...
purpose: to evaluate the outcomes of internal tamponade using heavy silicone oil in complicated retinal detachment (rd) surgery. methods: in this interventional case series, patients with complicated rd involving the inferior retina were enrolled. inclusion criteria included rd secondary to proliferative vitreoretinopathy (pvr cp6 and/or ca6) involving the inferior retina, inferior or posterior...
purpose: to evaluate the anatomical and functional outcomes of using heavy silicone oil as an internal tamponade for complicated cases of retinal detachment associated with proliferative vitreoretinopathy involving inferior retinal quadrants methods: 55 eyes from 55 patients with complicated retinal detachments enrolled in this interventional case series study. all eyes underwent standard three...
Ratios for double silicone oil Endotamponade – in vitro observations may assist with ratio selection
BACKGROUND Silicone oil tamponade is more frequently reserved for cases of complex retinal detachment. We describe the effects of different variations in oil ratios with the relatively unknown technique of double oil tamponade. METHODS Retrospective case note review of nine patients with complex rhegmatogenous retinal detachment (RD). All cases had both superior and inferior breaks, mostly wi...
In the past two decades, many advances have been made in vitrectomy instrumentation, surgical techniques, and the use of different tamponade agents. These agents serve close retinal breaks, confine eventual retinal redetachment, and prevent proliferative vitreoretinopathy (PVR). Long-acting gases and silicone oil are effective internal tamponade agents; however, because their specific gravity i...
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