Spontaneous in-the-bag intraocular lens luxation into the vitreous cavity: last-stage complication of pseudoexfoliative syndrome after phacoemulsification.
OBJECTIVE
We describe 8 cases of late spontaneous in-the-bag intraocular lens (IOL) luxation into the vitreous cavity, which occurred at the Department of Ophthalmology and Neurosurgery of the University of Siena between January and December 2006.


METHODS
In this interventional case series, the medical records of all patients with posterior luxation of in-the-bag IOLs - who had undergone a pars plana vitrectomy with IOL removal and scleral fixation IOL implantation between January and December 2007 at the Department of Ophthalmology and Neurosurgery of Siena, Italy - were retrospectively reviewed.


RESULTS
The final post- operative visual acuity was 20/30 or better in 6 patients, while myopic macular degeneration and total retinal detachment limited visual acuity in the remaining 2 patients.


CONCLUSIONS
The high prevalence of pseudoexfoliation (PEX) in the patients who had been operated for cataract phacoemulsification in our department could explain the occurrence of 8 posterior luxations of in-the-bag IOLs in only 1 year. Our study suggests that for the next years we will expect an increase in occurrence of spontaneous in-the- bag IOL luxations in the vitreous cavity. This condition could represent the last stage of PEX syndrome.
Balestrazzi
A
A
Department of Ophthalmology and Neurosurgery, Università di Siena, Siena, Italy. balestrazzi@unisi.it
Tosi
G M
GM
Alegente
M
M
Mazzotta
C
C
Esposti
P L
PL
Berni
E
E
Michieletto
P
P
Caporossi
T
T
D000368:Aged; D000369:Aged, 80 and over; D002386:Cataract / Q000150:complications; D017889:Exfoliation Syndrome / Q000150:complications*; D005260:Female; D005548:Foreign-Body Migration / Q000209:etiology*; D006801:Humans; D007903:Lens Capsule, Crystalline / Q000601:surgery; D019654:Lens Implantation, Intraocular; D007910:Lenses, Intraocular; D008297:Male; D008875:Middle Aged; D018918:Phacoemulsification; D012189:Retrospective Studies; D014792:Visual Acuity; D014822:Vitreous Body / Q000473:pathology*