Abstract
To evaluate refractive outcomes of toric intraocular lens (IOL) implantation in eyes with previous radial keratotomy (RK). Cullen Eye Institute, Baylor College of Medicine, Houston, Texas. Retrospective case series. Consecutive cases with previous RK and had undergone cataract surgery with toric IOL implantation and met the following criteria were retrospectively reviewed: (1) regular bowtie corneal astigmatism within the central 3.0 mm zone, (2) difference in corneal regular astigmatism magnitude between the IOLMaster and Lenstar of ≤ 0.75 diopters (D), (3) difference in the regular astigmatism meridians from the 2 biometers of ≤15 degrees, and (4) available postoperative manifest refraction at ≥ 8 weeks with corrected distance visual acuity of 20/30 or better. Vector analysis was used to assess the preoperative corneal and postoperative refractive astigmatism. In 40 eyes of 31 patients with previous RK, preoperatively, the mean magnitude of corneal regular astigmatism was 2.10 ± 0.98 D; 1 (3%) and 2 (10%) eyes had anterior corneal regular astigmatism ≤0.5 D and ≤1.0 D, respectively; and the centroid value was 1.14 D @ 179 degrees ± 2.05 D. Postoperatively, the mean magnitude of refractive regular astigmatism was 0.46 ± 0.44 D; 29 (73%) and 35 (88%) of eyes had refractive regular astigmatism ≤0.5 D and ≤1.0 D, respectively (P < .05); and the centroid value was 0.12 D @ 173 degrees ± 0.63 D (P < .05). Toric IOLs can be used successfully to treat corneal regular astigmatism in eyes with previous RK.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.