[Vitreous surgery for intraocular lens dislocated into vitreous cavity]

To study the way to manage intraocular lenses (IOLs) dislocated into vitreous cavity.

Three methods of vitreoretinal surgery were applied for 15 cases with severe dislocation of IOL into vitreous cavity: vitreoretinal surgery combined with simple IOL removal in 7 cases (simple group), vitreoretinal surgery combined with liquid perfluorocarbon (PFCL) applied for IOL removal in 3 cases and vitreoretinal surgery combined with IOL removal and fixation of IOL at ciliary sulcus in 5 cases.

The dislocated IOLs were removed successfully in all cases. The preoperative visual acuities were light perception to hand movement. Postoperatively, the patients were followed for 3 months to 3 years. In the cases with ciliary sulcus fixation of IOL, all their visual acuities were above 20/100 and the best visual acuity was 20/25. In the 10 cases without fixation of IOL, the corrected visual acuities were 20/1000 to 20/50. The complications were retinal detachment in 1 case, slight vitreous hemorrhage in 2 cases and temporary uveitis in 3 cases.

Vitreous surgery is the best way for the treatment of a case with IOL severely dislocated into the vitreous cavity, and such an IOL should be removed. Visual acuity can be improved significantly by the fixation of IOL at ciliary sulcus.