PURPOSE To evaluate the effect of lens status on intraocular pressure (IOP) in siliconized eyes and also on the emulsification of silicone oil. PATIENTS AND METHODS A total of 31 eyes of 31 patients with retinal detachment were operated on with pars plana vitrectomy and silicone oil injection: 16 phakic (Group A) and 15 pseudophakic (Group B). During the 6-month follow-up period, IOP was meas...

We show that the chemical structures of silicone oils can have an important role in the giant electrorheological (GER) effect. The interaction between silicone oils and solid nanoparticles is found to significantly influence the ER effect. By increasing the kinematic viscosity of silicone oils, which is a function of siloxane chain length, sol-like, gel-like and clay-like appearances of the con...

To report a case of gyrate atrophy of the choroid and retina associated with retinal detachment. Hyperornithinemia confirmed the diagnosis of gyrate atrophy. Pars plana vitrectomy with silicone oil infusion was performed with good anatomical results, despite the persistence of low visual acuity. Retinal detachment is a rare complication of gyrate atrophy and can be managed with pars plana vitre...

Vitrectomy was performed bilaterally in pigmented rabbits and followed by silicone oil injection in one eye only. Electroretinographic studies were performed preoperatively and at selected postoperative intervals. In the early postoperative period both eyes showed an initial reduction in a and b wave amplitudes, followed by a return to baseline values. The amplitudes were symmetrically and equa...

A 75-year-old man was incidentally found to have a yellow-white retinal lesion with scattered hemorrhages. He was empirically treated elsewhere for viral retinitis without resolution and later transferred to the Vanderbilt Eye Institute, where retinal biopsy with silicone oil tamponade showed retinal metastasis. He had no prior history of cancer, and multiple systemic imaging evaluations failed...

We experienced a case of intraocular lens (IOL) luxation with the capsular bag after vitrectomy. The case was a 66-year-old female in whom an IOL was implanted one year after surgery for giant tear retinal detachment using silicone oil. Four years after the implantation surgery, the patient suffered subluxation of the IOL with the capsular bag. Examinations of the luxated IOL with the capsular ...

In this paper some saturation properties of silicone oil-based magnetorheological fluids in mechanical engineering were researched and discussed by theoretical analysis and experiments. Firstly, experiment materials and preparation process of silicone oil-based magnetorheological fluids were presented. Secondly, magnetic-field saturation, particles saturation and added nano-particles saturation...