Abstract
Objective
To retrospectively analyze the visual outcomes of KAMRA (AcuFocus Inc, Irvine, Calif.)
inlay insertion in a cohort of patients reporting success of procedure, complications,
patient satisfaction, and refractive outcomes.
Design
Retrospective trial at the TLC Laser Centre, Toronto.
Methods
A total of 5 surgeons at the practice inserted 35 KAMRA inlays in 35 patients between
October 2012 and June 2014. Some patients had a sole KAMRA inlay insertion, whereas
others had combined laser vision correction (LVC) and KAMRA inlay on either the same
day or sequentially. There was a small cohort of patients who had previous unrelated
LVC. Mean time of follow-up was 299 days.
Results
After KAMRA inlay insertion there was a significant improvement in uncorrected near
visual acuity (p = 0.00009), uncorrected intermediate visual acuity (p = 0.00006), and uncorrected distance visual acuity (p = 0.02), but levels of patient dissatisfaction were 43%. The most common cause for
dissatisfaction was requirements for readers (23%), followed by dysphotopsias (11%).
The explantation rate was 11.42%, and 28.5% of patients required enhancements after
inlay insertion.
Conclusions
The KAMRA corneal inlay has significant improvements in uncorrected near visual acuity,
uncorrected intermediate visual acuity, and uncorrected distance visual acuity when
used in isolation or combined with LVC. Appropriate patient selection is crucial.
This procedure should not be used as first-line presbyopia management because of low
levels of patient satisfaction, biocompatibility concerns, and explantation rates.
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Article info
Publication history
Published online: December 01, 2022
Accepted:
November 7,
2022
Received in revised form:
October 24,
2022
Received:
August 7,
2022
Publication stage
In Press Corrected ProofIdentification
Copyright
© 2022 Canadian Ophthalmological Society. Published by Elsevier Inc. All rights reserved.
