[Use of perfluorocarbon solutions in the surgical treatment of posterior luxation of the lens]. / Utilisation des perfluorocarbones liquides dans le traitement chirurgical des luxations postérieures du cristallin.

Posterior lens dislocations represent 20 to 40% of all lens dislocations. It can occur after trauma. Visual prognosis can be good, but most often there are complications such as glaucoma, retinal detachment and uveitis. A few years ago, surgery was difficult, and surgery was delayed until the development of specific complications. A new technique, using perfluorocarbon liquids (PFCL), should be recommended because it is simple, and constantly effective. After vitrectomy, perfluorodecalin is injected into the vitreous cavity. As PFCL have a density twice the density of water, it allows the lens to float on the surface of the PFCL, behind the iris. Lens extraction can be associated with trabeculectomy, and anterior chamber lens implantation. We present a prospective study of 6 cases operated according to this technique. Postoperative results were good: visual acuity was preserved and ocular tension was controlled in cases of preoperative hypertonia. We believe this technique can be recommended after posterior lens dislocation, to prevent complications and to preserve visual acuity.