This article is more than 5 years old. Information may no longer be current.
Biaxial MICS with rollable acrylic IOL appears to offer astigmatic neutrality
J Cataract Refract Surg. 2009;35(9):1555-1562.
Click Here to Manage Email Alerts
Biaxial microincision cataract surgery with an IOL inserted through a 2-mm temporal incision resulted in an insignificant increase in astigmatism, a study showed.
The prospective study included 76 eyes that underwent biaxial MICS with implantation of the hydrophilic acrylic UltraChoice 1.0 Rollable Thinlens IOL (ThinOptX). Five patients were later excluded because of insufficient preoperative keratometry. The MICS group had a mean age of 75.86 years.
A control group comprised 74 eyes of age- and sex-matched patients who did not undergo phacoemulsification or IOL implantation. The control group had a mean age of 74.27 years.
Keratometry was performed before and after surgery. Changes in keratometric cylinder were also evaluated.
In the biaxial MICS group, the right-hand incision used for IOL injection had a mean external opening width of 2 mm and the left-hand incision had a mean external opening width of 1.49 mm.
Mean astigmatism in the surgical group was 1.06 D preoperatively and 1.14 D postoperatively. In the control group, mean preoperative astigmatism was 1.03 D and mean postoperative astigmatism was 1.13 D. The differences between the groups' mean preoperative and postoperative astigmatism were statistically insignificant.
In right and left eyes combined, the summated vector mean absolute value of surgically induced astigmatism was 0.03 D × 7° in the control group and 0.18 D × 160° in the MICS group.