Abstract
A case is presented of a patient with an unexpected poor visual result and subsequent correction following cataract removal surgery via phacoemulsification and intraocular lens implantation using a toric intraocular lens implant (IOL). The initial operation resulted in an uncorrected vision of 20/100 (0.70 logMAR). Retrospective analysis of the patient’s corneal topography revealed irregular astigmatism secondary to remote trauma to the cornea. The cylinder axis on manifest refraction (MR) was significantly different from measured keratometry, so a second procedure was performed to align the cylinder axis of the IOL with the steep axis on MR. This repositioning procedure improved visual outcome to a final uncorrected vision of 20/25 (0.10 logMAR) and best corrected acuity of 20/20 (0.0 logMAR).
Highlights
Toric intraocular lens implants (IOLs) used in cataract surgery are used to correct both sphere and cylinder refractive error, and are designed to neutralize preexisting corneal astigmatism
Despite having high cylinder in his preoperative manifest refraction (MR), this patient was a questionable candidate for a toric IOL implantation due to his unique corneal curvature secondary to scarring
When keratometry consistently found a cylinder axis conflicting with the MR, the IOL implantation axis was planned for the keratometry axis rather than the MR axis
Summary
Toric intraocular lens implants (IOLs) used in cataract surgery are used to correct both sphere and cylinder refractive error, and are designed to neutralize preexisting corneal astigmatism. They have the potential to improve visual outcomes of astigmatic eyes in patients with regular or irregular astigmatism [1]. (2015) Toric Intraocular Lens Malposition Corrected by Lens Repositioning to Manifest Refractive Cylinder Axis in Patient with Irregular Astigmatism Due to Corneal Scar. Realignment of the toric IOL using the preoperative MR cylinder axis reduced astigmatism, improving vision and patient satisfaction
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: 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.
