Removal of a crystalline lens dislocated into the vitreous cavity can be hazardous, particularly in the presence of a retinal detachment. Hard pieces of nuclear material may be difficult to extract and may repeatedly fall onto the retina when emulsification is attempted in the vitreous cavity. Cases involving four eyes with dislocated crystalline lens and rhegmatogenous retinal detachment, into which liquid per-fluorocarbon was injected after vitrectomy to float the dislocated lens material off the retina and reattach the retina, are reported. The dislocated lens was removed while floating on the perfluorocarbon liquid, which also provided a cushion that prevented dropped fragments of lens from traumatizing the retina. In all four cases, surgery was not associated with complications and resulted in improvement in visual acuity and retinal reattachment.
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