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Study finds limbal relaxing incision with MICS effectively corrects astigmatism
J Refract Surg. 2010;26(8):594-599.
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Limbal relaxing incision combined with bimanual microincision cataract surgery is an easy-to-follow and accurate technique for correcting pre-existing astigmatism, a study found.
In the prospective, single-center study, 189 eyes with 0.75 D or more of keratometric astigmatism were selected randomly to undergo bimanual MICS alone or limbal relaxing incision combined with 0.9-mm incision bimanual phacoemulsification and implantation of the Y-60H MICS IOL (Hoya).
At 6 months' follow-up, the limbal relaxing incision group showed significantly higher mean uncorrected distance visual acuity (0.94 D) than the MICS-alone group (0.71 D), although no difference was seen in corrected distance visual acuity for either group, the study said.
In addition, mean postoperative cylindrical error was significantly lower in the limbal relaxing incision group (0.56 D) than in the MICS-alone group (1.51 D).
"Although further study, especially in relation to comparison with toric IOL implantation, should be considered, [limbal relaxing incision] combined with 0.9-mm bimanual phacoemulsification and MICS IOL implantation is a useful procedure that can achieve accurate correction of preexisting astigmatism leading to good [uncorrected distance visual acuity] after cataract surgery," the study authors concluded.
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