Outcomes of presbyopia-correcting intraocular lenses after laser in situ keratomileusis

BackgroundLaser in situ keratomileusis (LASIK) is the most common refractive surgery in young patients, which aims at providing a clear distance vision without the use of spectacles. With time, these patients develop symptomatic cataract, which affects activities of daily living, and to improve visual acuity, intraocular lens (IOL) implantation can be considered. In post-myopic LASIK patients, to allow continuation of spectacle independence, the implantation of presbyopia-correcting IOLs is a suitable option. The purpose of this retrospective case series is to report the visual outcome and quality in post-myopic LASIK eyes after the implantation of AT LISA tri839MP IOL.MethodTwenty eyes of 13 patients with history of myopic LASIK within 20years underwent phacoemulsification by one single surgeon. All eyes were implanted with AT LISA tri839PMP IOL, and their outcomes were evaluated at 6months postoperation.ResultsThe mean postoperative uncorrected distance visual acuity (VA) is 0.280.29, while the corrected distance VA is 0.06 +/- 0.14. The mean postoperative uncorrected near VA is 0.02 +/- 0.05, while the corrected near VA is 0.01 +/- 0.02. The mean postoperative manifest refraction spherical equivalent (SE) is -0.92 +/- 0.76D. There is a statistically significant difference between the preoperative and postoperative refraction (p=0.02), which shows a postoperative myopic shift. There is also a statistically significant difference between the mean targeted SE and postoperative manifest refraction SE (p=0.00). Only one out of 20 eyes (5%) reported halo and glare symptoms. Ten out of 20 eyes (50%) are able to achieve spectacles independence.Conclusionp id=ParIn conclusion, in post-myopic LASIK eyes, AT LISA tri839MP provides a good visual outcome at both near and distance, but is more predictable at near than at distance. There is a myopic shift in the postoperative SE. Visual quality is satisfactory and has not been exacerbated. Most patients can remain to be spectacles free at all distances.