https://orcid.org/0000-0003-4227-7449
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Abstract
Purpose
To analyze visual outcomes and accuracy of intraocular lens (IOL) calculation formulas in predicting postoperative outcomes in patients undergoing flanged intrascleral IOL fixation.
Design
Case Series.
Subjects
Twenty-three patients who had undergone secondary IOL placement using flanged intrascleral fixation technique.
Methods
Retrospective chart review.
Main Outcome Measures
Corrected distance visual acuity (CDVA) and postoperative spherical equivalent based on manifest refraction.
Results
Visual acuity improved from 20/577 to 20/58. Overall, the actual refraction was 0.06 D more myopic than predicted. Holladay 2, Sanders Retzlaff Kraff/Theoretical (SRK/T) and Barrett Universal II resulted in mild myopic surprise (−0.55, −0.18 and −0.20 D). Haigis and Hill-RBF (Radial Basis Function) resulted in mild hyperopic surprise (+0.28 and +0.28 D). Hoffer Q and Holladay 1 were the most accurate (−0.02D and −0.08 D).
Conclusion
Flanged intrascleral IOL fixation improved vision even in patients with other posterior segment pathologies. The effective lens positioning is likely similar to in-the-bag positioning. Hoffer Q and Holladay 1 formulas with in-the-bag calculations were the most accurate.
Data Sharing Statement
All data accessed complied with relevant data protection and privacy regulations.
Ethics and Consent Statements
This research study was approved by Wayne State University IRB. All research protocols followed the appropriate ethical standards. This was a retrospective comparative study that did not require direct patient contact. Thus, informed consent is not applicable.
Acknowledgments
American Academy of Ophthalmology Annual Meeting, San Francisco CA, 2019.
Disclosure
The authors report no conflicts of interest in this work.