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Microincision IOL demonstrates quick visual recovery, low surgically induced astigmatism
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BOSTON — An IOL designed for insertion through a small incision shows potential for rapid visual recovery with low surgically induced astigmatism, according to a speaker.
After phacoemulsification, a microincision iMICS1 IOL (Hoya) was implanted through a 1.8- to 2.2-mm incision with aid of a cartridge, although a preloaded injector is in the planned stage of development, Hiroko Bissen-Miyajima, MD, said at the annual meeting of the American Society of Cataract and Refractive Surgery.
On day 1 after surgery in 38 eyes of 29 patients, mean uncorrected distance visual acuity was just above 0.00 logMAR; by 1 week, 0.00 logMAR was achieved and was maintained through 1 month of follow-up. Corrected visual acuity was also consistent with little change throughout the study, Dr. Bissen-Miyajima said.
After surgery, patients had a mean change in corneal astigmatism of –0.709 D at 1 day, –0.64 D at 1 week and –0.642 at 1 month. Overall, mean surgically induced astigmatism was 0.12 D, Dr. Bissen-Miyajima said.
In the study, the final incision size measured after IOL insertion was 2 mm in 53% of eyes, 2.1 mm in 21%, 1.9 mm in 21% and 2.2 mm in 5%.
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