The importance of the diffusive transfer of tints in the technology of tinting of soft contact lenses

This paper deals with the kinetics of tint transfer in soft contact lenses. A mathematical model taking into account both diffusion and chemical reactions is proposed and physicochemical parameters are determined. It is shown that bulk tinting is more effective in practice than surface tinting.     

A method of treating diffuse postoperative peritonitis

The results of autopsy of 184 patients, who died in diffuse peritonitis, are analysed. The impaired leakproof state of the hollow abdominal organs was the most common cause of postoperative peritonitis. Eighty four relaparotomies were performed for peritonitis. In 7 patients, the programmed peritoneal lavage was used. For temporary closure of the abdomen, the polyurethane film was used. In all the patients, the signs of peritonitis were liquidated. Two patients died.