Intraocular lens position following in-the-bag implantation of single-piece versus three-piece acrylic intraocular lenses.
OBJECTIVE
To report the position of the single-piece and three-piece intraocular lenses (IOLs) following in-the-bag implantation.


METHODS
Forty patients with bilateral age-related cataracts were recruited from both tertiary hospital and private practice in Montréal, Canada. Patients received the single-piece IOL in one eye and the three-piece IOL contralaterally. Postoperative anterior chamber depth (ACD) and iris-to-IOL distance were evaluated using a Scheimpflug imaging system.


RESULTS
Mean ACD was 4.21 ± 0.32 mm for the single-piece IOL and 3.94 ± 0.34 mm for the three-piece IOL. Mean iris-to-IOL distance was 0.70 ± 0.19 mm for the single-piece IOL and 0.44 ± 0.21 mm for the three-piece IOL. The difference between paired eyes was 0.26 ± 0.20 mm (P = .002) for ACD and 0.25 ± 0.21 mm (P < .001) for iris-to-IOL distance.


CONCLUSIONS
The single-piece IOL was positioned more posteriorly to the iris and allowed for a greater ACD than the three-piece IOL.
Department of Ophthalmology, Hôpital Maisonneuve-Rosemont, Université de Montréal, Montréal, Québec, Canada. marie-claude.robert.2@umontreal.ca
Marie-Claude
MC
Robert
Paul
P
Harasymowycz
D000368:Aged; D000369:Aged, 80 and over; D000704:Analysis of Variance; D002170:Canada; D002386:Cataract / Q000503:physiopathology; D005260:Female; D006801:Humans; D019654:Lens Implantation, Intraocular / Q000379:methods*; D007910:Lenses, Intraocular; D008297:Male; D008875:Middle Aged; D018918:Phacoemulsification; D011446:Prospective Studies; D014792:Visual Acuity / Q000502:physiology