Multifocal IOL Implantation After Pars Plana Vitrectomy
Narrative Responses:
Purpose
To evaluate the accuracy of intraocular lens power calculation in cases of post-LASIK multifocal intraocular lens(IOL) implantation after pars plana vitrectomy(PPV).
Methods
We reviewed two eyes of two patients implanted with AcrySof® ReSTOR® D1 who had previous LASIK surgery. One patient was conducted phacovitrectomy for cataract and epiretinal membrane. The other patient were conducted phaco surgery after PPV for rhegmatogenous retinal detachment. The clinical outcomes were evaluated 1 and 2 months postoperatively and consisted of distant, intermediate, and near visual acuity regarding to the accuracy of IOL power calculation.
Results
One patient had LASIK surgery and excimer laser enhancement in one eye previously. Postoperative refraction value of one patient was plano, but uncorrected and corrected vision was 0.6. Preoperative topography showed irregular astigmatism in the center of cornea. Postoperative refraction value of the other patient was -1.50 diopter(D) at 1 month. Shammas-PL and Haigis-L formula were considered preoperatively and Shammas-PL formula was more accurate than Haigis-L formula.
Conclusion
We experienced unusual cases of multifocal IOL implantation after vitrectomy and LASIK. The IOL power calculation may be inaccurate after vitrectomy. Also, preoperative topographic finding is important after LASIK surgery.