A prospective, randomised comparison of single and three piece acrylic foldable intraocular lenses.
OBJECTIVE
To compare the postoperative performance of single and three piece acrylic foldable intraocular lenses (IOLs).


METHODS
20 patients underwent bilateral cataract surgery with a single piece SA30AL IOL in one eye and a three piece MA30BA IOL in the other eye. The eyes were randomly assigned to either a single or three piece lens. The amount of IOL decentration and tilt, area of anterior capsule opening, and degree of posterior capsule opacification were measured using the Scheimpflug anterior segment analysis system (Nidek EAS-1000). Visual acuity and contrast sensitivity were examined. Measurements were performed by masked examiners before and 1 day, 1 week, 1, 3, 6, and 18 months after surgery.


RESULTS
There were no significant differences between the two groups (p>0.05, paired t test) in the amount of IOL decentration, IOL tilt, area of anterior capsule opening, degree of posterior capsule opacification, best corrected visual acuity, and contrast sensitivity throughout the 18 month follow up period.


CONCLUSIONS
The single and three piece acrylic foldable IOLs are equally stable in the eye after surgery.
Nejima
R
R
Miyata Eye Hospital, Miyazaki, Japan.
Miyata
K
K
Honbou
M
M
Tokunaga
T
T
Tanabe
T
T
Sato
M
M
Oshika
T
T
D000180:Acrylic Resins; D000368:Aged; D002386:Cataract / Q000503:physiopathology; D002387:Cataract Extraction; D015350:Contrast Sensitivity; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D019654:Lens Implantation, Intraocular / Q000379:methods*; D007910:Lenses, Intraocular; D008297:Male; D011446:Prospective Studies; D014792:Visual Acuity
D000180:Acrylic Resins