Background: Opacification of ophthalmic devices has been previously reported in silicone scleral buckle, Molteno implant, and intraocular lens opacification. However, there is no report on polymethyl methacrylate (PMMA) intraocular lens (IOL) calcification. Objective: Report the clinical feature, histopathologic and spectrophotometer analysis of opacified three-piece PMMA IOL. Method: A 60-year...

We demonstrate that xylitol can be added to polymethylmethacrylate (PMMA) bone cement to enhance the elution of daptomycin in terms of both the peak and sustained release of antibiotic. We also demonstrate that a PMMA-xylitol formulation optimized for daptomycin can be used to enhance the elution of both vancomycin and gentamicin.

Polymethylmetacrylate (PMMA) is a synthetic polymer that is being used in large scale in cosmetic surgery to fill soft tissue. In its injectable form, it is made up of microspheres spread within a colloid medium of carboxymethylcellulose. It is used to soften wrinkles, increase volume and enhance facial contour, among other surgical applications. We report a case of a 77-year-old lady who had a...

Gentamicin incorporated in beads of polymethylmethacrylate has been shown capable of being released over a period of several months in concentrations sufficiently high to control most pathogens. The therapeutic efficacy of such beads has been demonstrated in a model of osteomyelitis of the femur in the dog. Good tolerance has been shown, both in the animal model and in tissue cultures. In forty...

Curettage and packing with polymethylmethacrylate cement is a routine treatment for giant-cell tumour (GCT) of bone. We performed an in vitro evaluation of the cytotoxic effect of a combination of cement and methotrexate, doxorubicin and cisplatin on primary cell cultures of stromal GCT cells obtained from five patients. Cement cylinders containing four different concentrations of each drug wer...

OBJECTIVE To describe the use of a polymethylmethacrylate contact lens as an artificial cornea to enhance visualization for practice surgery using cadaver eyes. DESIGN The opaque cornea of a cadaver eye is removed by trephination. Cyanoacrylate glue is used to secure a large-diameter polymethylmethacrylate contact lens to the corneal rim. RESULTS Excellent visualization for practice surgery...

Introducing a polymethylmethacrylate (PMMA) layer at the (PEA)0.2(FA)0.8SnI3 perovskite/hole transport interface leads to remarkable improvement in photogenerated current density and fill factor, resulting an increase power conversion efficiency from 6.5% 10%.

Polymethylmethacrylate (PMMA) has been used in orthopaedics since the 1940s. Despite the development and popularity of new biomaterials, PMMA remains popular. Although its basic components remain the same, small proprietary and environmental changes create variations in its properties. PMMA can serve as a spacer and as a delivery vehicle for antibiotics, and it can be placed to eliminate dead s...

A 35-year-old transsexual (male to female) went to emergency with 24 h of mild fever, cough and dyspnoea. Four days before he had been submitted to multiple gluteus subcutaneous injections of polymethylmethacrylate (PMMA) microspheres. Patient had a past medical history of uncontrolled hypertension. On admission patient had Glasgow Coma Scale Score of 15, tachypnea and tachycardia, with central...