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Analysis of the visual and refractive outcome following laser in situ keratomileusis (LASIK) retreatment over a four-year follow-up period

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Abstract

Purpose

To evaluate the safety and refractive stability following LASIK retreatment over a four-year follow-up period.

Methods

In this retrospective study, 60 eyes of 52 patients underwent LASIK retreatment for residual refractive errors after LASIK. Retreatment was performed by lifting the original flap followed by laser ablation of the stromal bed. The main outcome measures at the latest follow-up visit were efficacy, predictability, safety and stability. The mean follow-up time after retreatment was 22.3 ± 10.5 (range 12–48 months).

Results

The baseline mean spherical equivalent (SE) was −4.85 ± 2.57 dioptres (D) (range +2.25 to −11.75 D). At the latest follow-up visit, the uncorrected visual acuity (UCVA) was 6/9 or better in 88% of the eyes, the mean SE was −0.33 ± 0.8 D (−2.50 to +2.25 D), and 77% of the eyes were within ±0.50 D of target refraction. None of the patients lost lines of best corrected visual acuity (BCVA) and 25 eyes (41%) gained one or more lines. Three eyes (5%) developed peripheral epithelial in-growth and none of the patients had corneal ectasias or retinal complications.

Conclusion

LASIK retreatment is a safe and effective procedure for correcting residual refractive errors after LASIK. After retreatment, the visual and refractive outcome remained stable during the four-year follow-up period of the study.

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Abbreviations

BCVA:

Best corrected visual acuity

D:

Dioptres

FV:

Final visit

LASEK:

Laser subepithelial keratomileusis

LASIK:

Laser in situ keratomileusis

IOP:

Intraocular pressure

Mos:

Months

Preop:

Before initial LASIK

PRK:

Photorefractive keratectomy

RE:

At retreatment time

SE:

Spherical equivalent

UCVA:

Uncorrected visual acuity

Yrs:

Years

1 wk:

One week after initial LASIK

3 mo:

Three months after initial LASIK

1 wk-r:

One week after retreatment

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Authors and Affiliations

  1. Mater Private Hospital, Eccles Street, Dublin 7, Ireland

    Ayman Saeed, Maeve O’Doherty & Michael O’Keefe

  2. National University of Ireland, Dublin, Ireland

    John O’Doherty

Authors
  1. Ayman Saeed
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  2. Maeve O’Doherty
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  3. John O’Doherty
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  4. Michael O’Keefe
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Corresponding author

Correspondence to Michael O’Keefe.

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Saeed, A., O’Doherty, M., O’Doherty, J. et al. Analysis of the visual and refractive outcome following laser in situ keratomileusis (LASIK) retreatment over a four-year follow-up period. Int Ophthalmol 27, 23–29 (2007). https://doi.org/10.1007/s10792-007-9054-9

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  • DOI: https://doi.org/10.1007/s10792-007-9054-9

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