Abstract
This retrospective study is to evaluate refractive and visual outcomes of topography-guided femtosecond laser-assisted in situ keratomileusis (TGL) for correcting corneal high-order aberrations (HoA) after multifocal intraocular lens (mIOL) implantation. Twenty-eight eyes of 28 patients with both corrected distance visual acuity (CDVA) under 20/25 and subjective visual discomfort at 3 months after mIOL implantation were included in the study. TGL was performed to correct corneal HoA. Visual acuity, manifest refraction, and corneal HoA were measured 3 months after TGL. CDVA was improved in 22 (78.57%) of 28 eyes after TGL. Uncorrected distance visual acuity (0.12 ± 0.16 logMAR) and uncorrected near visual acuity (0.081 ± 0.16 logMAR) were better than those before TGL (P < 0.001). Residual refractive astigmatism showed no difference compared to that before TGL. Root mean square (RMS) of HoA (P = 0.012), spherical aberration (P = 0.013), and RMS of coma (P = 0.001) were reduced relative to those before TGL. Amount of improvement in CDVA was correlated with amount of reduced coma RMS (R = 0.524; P = 0.005) and spherical aberration (R = 0.443; P = 0.021). TGL showed to improve both refractive and visual outcomes in patients with mIOL implantation by correcting corneal HoA.
Highlights
This retrospective study is to evaluate refractive and visual outcomes of topography-guided femtosecond laser-assisted in situ keratomileusis (TGL) for correcting corneal high-order aberrations (HoA) after multifocal intraocular lens implantation
wavefront-guided LASIK (WGL) cannot completely eliminate residual HoA after multifocal intraocular lens (mIOL) implantation because changable pupil size and slight eye movements during the wavefront measurement can result in inconsistent preoperative corneal HoA measurements, which open the potential for e rror[8]
The present study evaluated refractive and visual outcomes of TGL for correcting corneal HoA after mIOL implantation
Summary
This retrospective study is to evaluate refractive and visual outcomes of topography-guided femtosecond laser-assisted in situ keratomileusis (TGL) for correcting corneal high-order aberrations (HoA) after multifocal intraocular lens (mIOL) implantation. WGL cannot completely eliminate residual HoA after mIOL implantation because changable pupil size and slight eye movements during the wavefront measurement can result in inconsistent preoperative corneal HoA measurements, which open the potential for e rror[8]. To overcome such a predicament, topography-guided femtosecond-LASIK (TGL) was introduced recently to correct irregular astigmatism on the corneal surface by separately calculating corneal H oA9. Number Age (years) Sex (female, %) Laterality (right eye, %) UDVA (logMAR) CDVA (logMAR) Manifest refraction spherical equivalent (D) Refractive sphere Refractive astigmatism Topography measurements (D) Anterior corneal astigmatism Corneal high-order aberration (RMS)
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.