Laser in Situ Keratomileusis Outcomes among Myopic and Myopic Astigmatism Patients with Thin Cornea
Journal of Ophthalmic and Optometric Sciences,
Vol. 1 No. 2 (2017),
12 March 2017
,
Page 15-20
https://doi.org/10.22037/joos.v1i2.16556
Abstract
Purpose:To evaluate refractive results after laser in situ keratomileusis among patients with thin corneas.
Patients and Methods: Three hundred and two eyes from 168 patients with thin corneas undergoing laser in situ keratomileusis in Basir Eye Clinic, Tehran, Iran, were retrospectively studied. We included patients with best corrected visual acuity of better than 6/12, age of more than 18 years, and corneal thickness of less than 499 μm.
Results: The mean age of patients was 30.7 ± 8.6 years and the mean preoperative spherical equivalent was - 4.61 ± 2.37 D. The results after at least one year of follow-up were as follow: 86.6 % of patients with low myopia, 71.8 % of patients with mild myopia, 50.0 % of patients with moderate myopia and 51.8 % of patients with high myopia achieved a ± 0.5 D spherical equivalent postoperatively. General linear model indicated a significant effect for the remaining stromal bed on final uncorrected visual acuity after adjustment for age, sex, and degree of myopia. No important complication occurred.
Conclusion: No important complications occurred after laser in situ keratomileusis among myopic patients with corneal thickness of less than 499 μm, and most of the patients achieved satisfactory refractive results.
Keywords: Laser in Situ Keratomileusis; outcome; myopia; thin cornea; Iran.
How to Cite
References
Seiler T, Koufala K, Richter G. Iatrogenic keratectasia after laser in situ keratomileusis. J Refract Surg. 1998;14(3):312-7.
Seiler T, Quurke AW. Iatrogenic keratectasia after LASIK in a case of forme fruste keratoconus. J Cataract Refract Surg. 1998;24(7):1007-9.
Lafond G, Bazin R, Lajoie C. Bilateral severe keratoconus after laser in situ keratomileusis in a patient with forme fruste keratoconus. J Cataract Refract Surg. 200;27(7):1115-8.
Joo CK, Kim TG. Corneal ectasia detected after laser in situ keratomileusis for correction of less than -12 diopters of myopia. J Cataract Refract Surg. 2000;26(2):292-5.
Jabbur NS, Stark WJ, Green WR. Corneal ectasia after laser-assisted in situ keratomileusis. Arch Ophthalmol. 2001;119(11):1714-6.
Pallikaris IG, Kymionis GD, Astyrakakis NI. Corneal ectasia induced by laser in situ keratomileusis. J Cataract Refract Surg. 2001;27(11):1796-802.
Kohnen T. Iatrogenic keratectasia: current knowledge, current measurements. J Cataract Refract Surg. 2002;28(12):2065-6.
Argento C, Cosentino MJ, Tytiun A, Rapetti G, Zarate J. Corneal ectasia after laser in situ keratomileusis. J Cataract Refract Surg. 2001;27(9):1440-8.
Djodeyre MR, Beltran J, Ortega-Usobiaga J, Gonzalez-Lopez F, Ruiz-Rizaldos AI, Baviera J. Long-term evaluation of eyes with central corneal thickness <400 μm following laser in situ keratomileusis. Clin Ophthalmol. 2016;10:535-40.
Kymionis GD, Bouzoukis D, Diakonis V, Tsiklis N, Gkenos E, Pallikaris AI, et al. Long-term results of thin corneas after refractive laser surgery. Am J Ophthalmol. 2007;144(2):181-185.
Kremer I, Bahar I, Hirsh A, Levinger S. Clinical outcome of wavefront-guided laser in situ keratomileusis in eyes with moderate to high myopia with thin corneas. J Cataract Refract Surg. 2005;31(7):1366-71.
Hashemi H, Fotouhi A, Sadeghi N, Payvar S, Foudazi H. Laser epithelial keratomileusis (LASEK) for myopia in patients with a thin cornea. J Refract Surg. 2004;20(1):90-1.
Lin RT, Lu S, Wang LL, Kim ES, Bradley J. Safety of laser in situ keratomileusis performed under ultra-thin corneal flaps. J Refract Surg. 2003;19(2 Suppl):S231-6.
Prandi B, Baviera J, Morcillo M. Influence of flap thickness on results of laser in situ keratomileusis for myopia. J Refract Surg. 2004;20(6):790-6.
- Abstract Viewed: 431 times
- PDF Downloaded: 149 times
