One Year Evaluation Of Visual Performance Of Small-Aperture Iol Implantation In Post-Corneal Refractive Surgery Cataractous Eyes

To evaluate visual performance of cataractous eyes treated contralaterally with a small aperture IOL with a previous history of laser refractive surgery.

Prospective, single-site study in an ambulatory surgicenter

Fifteen cataract patients with a history of LASIK (N=13) or RK (N=2) were treated with contralateral implantation of an IC-8 IOL in one eye and a monofocal IOL in their fellow eye. The refractive target for IC-8 IOL eyes was -0.75 D and plano for the fellow monofocal IOL eyes.  Manifest Refractive Spherical Equivalent (MRSE), Uncorrected (UDVA, UIVA, UNVA) monocular and binocular visual acuity for near, intermediate and distance vision in the IC-8 eye were assessed at Month 12. Visual acuity results presented in logMAR ± standard deviation.

At Month 12, patients achieved monocular UCVA of 20/25 or better in 93% for UDVA, 79% for UIVA and 71% for UNVA in the IC-8 eye.  Mean monocular UDVA, UIVA, and UNVA in the IC-8 eye was 0.04 logMAR ± 0.06, 0.03 logMAR ± 0.13, and 0.08 logMAR ± 0.13. Binocularly, vision of 20/25 or better was achieved 100% for UDVA, 93% for UIVA, and 79% for UNVA.  Patients achieved mean binocular UDVA, UIVA, and UNVA of 0.01 logMAR ± 0.04, 0.01 logMAR ± 0.11, and 0.07 logMAR ± 0.11. Mean MRSE for the IC-8 eyes was -0.54 D ± 0.73 and -0.09 D ± 0.66.

One year results show the IC-8 IOL provides good distance, intermediate and near monocular uncorrected visual acuity for eyes with a history of prior refractive surgery.