Clinical Outcomes After Continuous Intracorneal Ring implantation in Post-LASIK Ectasia: (Long-Term Follow-up)
Journal of Ophthalmic and Optometric Sciences,
Vol. 1 No. 3 (2017),
29 November 2017
,
Page 13-20
https://doi.org/10.22037/joos.v1i3.20266
Abstract
Purpose: The aim of the present study was to evaluate the clinical outcomes after implantation of MyoRing in patients with ectasia secondary to LASIK.
Patients and Methods: This study was a retrospective, consecutive, nonrandomized interventional case series. The MyoRing was implanted after creation of a stromal pocket using a PocketMaker microkeratome (Dioptex, GmBH, Linz, Austria) in 6 eyes of 6 patients with ectasia secondary to LASIK. Uncorrected distance visual acuity, corrected distance visual acuity, sphere, cylinder and keratometric changes were reported after a 3 year follow-up period.
Results: Uncorrected distance visual acuity and corrected distance visual acuity were improved in 5 and 3 patients respectively. One patient showed decreased UDVA after 3 years and in 3 patients the corrected distance visual acuity decreased at the last visit compared to the preoperative reading. Maximum keratometry, sphere and cylinder were improved from preoperative values in 4, 2 and 5 patients respectively.
Conclusion: Because of the mixed results in our small group of patients, it seems that MyoRing implantation using mechanical dissection is not a very effective method for treatment of patients with post LASIK ectasia. However, large comparative multicenter studies are recommended to further verify these results.
Keywords: Ectasia, Cornea, LASIK, Corneal ring, Iran.
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References
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