Rotational stability and posterior capsule opacification of a plate-haptic and an open-loop-haptic intraocular lens.
OBJECTIVE
To compare the rotational stability and posterior capsule opacification (PCO) rate in eyes with a 1-piece or 3-piece acrylic intraocular lens (IOL).


METHODS
Department of Ophthalmology, Medical University of Vienna, Vienna, Austria.


METHODS
Prospective randomized masked clinical trial.


METHODS
Patients with age-related cataract received a plate-haptic acrylic IOL (Acri.Smart 46S) in 1 eye and a 3-piece loop-haptic acrylic IOL (Acri.Lyc 53N) in the other eye. Retroillumination images were taken 1 hour, 1 week, and 1, 6, and 12 months postoperatively. Intraocular lens rotation was measured using standard software (Adobe Photoshop). The amount of PCO was assessed subjectively at the slitlamp and objectively using an automated image-analysis software (AQUA).


RESULTS
The study enrolled 80 eyes of 40 patients. The IOL rotation measurements showed excellent reproducibility, with a deviation of less than 0.8 degrees. Both IOLs had comparable and good rotational stability; rotation was less than 4 degrees in 71% of eyes 1 year postoperatively. The mean absolute rotation was 2.6 degrees ± 1.9 (SD) in the plate-haptic IOL group and 3.1 ± 2.4 degrees in the loop-haptic IOL group. The mean AQUA PCO score (scale 0 to 10) was 0.4 in both IOL groups (P = .7).


CONCLUSIONS
The 2 IOL models had comparable, excellent rotational stability and low PCO intensity 1 year postoperatively. Thus, the plate-haptic IOL may be a good platform for a toric model.
Department of Ophthalmology, Medical University of Vienna, Vienna, Austria.
Ana
A
Prinz
Thomas
T
Neumayer
Wolf
W
Buehl
Lorenz
L
Vock
Rupert
R
Menapace
Oliver
O
Findl
Michael
M
Georgopoulos
D000179:Acrylates; D000368:Aged; D058442:Capsule Opacification / Q000209:etiology*; D015331:Cohort Studies; D004311:Double-Blind Method; D005500:Follow-Up Studies; D006801:Humans; D007910:Lenses, Intraocular / Q000009:adverse effects*; D008875:Middle Aged; D011183:Postoperative Complications; D011446:Prospective Studies; D011474:Prosthesis Design; D015203:Reproducibility of Results; D012399:Rotation
D000179:Acrylates