RESUMO
A prospective study was conducted on 90 eyes undergoing extracapsular cataract extraction and posterior chamber IOL implantation. Postoperative IOL decentration was evaluated with respect to the loop material, either polypropylene (prolene) or polymethylmethacrylate (PMMA), and the IOL fixation technique, either in the capsular sac (in-the-bag) after capsulorhexis, or in the ciliary sulcus after "can-opener" capsulotomy. More decentration was observed with IOL having polypropylene loops than with those having PMMA loops (0.80 +/- 0.735 mm versus 0.373 +/- 0.299 mm). IOL implanted in the bag showed greater decentration than those implanted in the sulcus, but the difference was not significant. Our findings confirm the recommendation to use an IOL with PMMA loops when placing the implant in the capsular sac.
Assuntos
Lentes Intraoculares , Técnicas de Sutura , Idoso , Idoso de 80 Anos ou mais , Extração de Catarata , Feminino , Humanos , Masculino , Metilmetacrilato , Metilmetacrilatos , Pessoa de Meia-Idade , Polipropilenos , Estudos Prospectivos , Falha de PróteseRESUMO
Over a period of 1 year, a new sodium hyaluronate preparation (IAL) has been studied in eye surgery. The study included 18 cases of extracapsular cataract extraction with intraocular lens (IOL) implantation and 19 cases of penetrating keratoplasty. The trial has shown that this substance presents all the advantages described for use of viscoelastic substances in ocular surgery. The use of this sodium hyaluronate preparation appeared to decrease the risk of the postsurgical ocular hypertension described for analogous substances with different physicochemical characteristics.