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Authors
Nguyen Xuan HiepVietnam National Institute of Ophthalmology, Hanoi, VietnamPham Thi Minh KhanhVietnam National Institute of Ophthalmology, Hanoi, VietnamDo QuyetVietnam Military Medical University (VMMU), Hanoi, VietnamThan Van ThaiNTT Hi-tech Institute, Nguyen Tat Thanh University, Ho Chi Minh City, VietnamVu Thi NgaInstitute for Research and Development, Duy Tan University, 03 Quang Trung, Danang, VietnamToi Chu DinhDepartment of Human and Animal Physiology, Faculty of Biology, HanoiNguyen Duy BacVietnam Military Medical University (VMMU), Hanoi, Vietnam
DOI:
https://doi.org/10.3889/vserpuhove.com.2019.373
Keywords:
ReLEx SMILE, Astigmatism, Myopia
Abstract
BACKGROUND: Some studies have shown that there is a certain rotation of the eye in the sitting and lying position of the patient. The Visumax system used for the Refractive Lenticule Extraction-Small Incision Lenticule Extraction (ReLEx SMILE) surgery lacks the rotation of eye control function. So, is the ReLEx SMILE surgery for patients with astigmatism safe and effective?
AIM: To evaluate the outcomes of the ReLEx SMILE surgery in cases with myopic astigmatism.
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METHODS: The case series included 120 eyes with myopic astigmatism undergoing ReLEx SMILE surgery from January 2018 to November 2018. The distribution of patients for two subgroups based on the power of astigmatism, low astigmatic group (≤ 1.50D) and high astigmatic group (> 1.50D). All patients were measured UDVA, CDVA, refractive sphere, astigmatism and sphere equivalent before and after surgery one week, one month and three months carefully. The astigmatic correction was evaluated by the vectorial analysis Alpins.
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RESULTS: The mean efficacy index of the low and high astigmatic group was 1.035 and 1.082 (respectively); the mean safety index was 1.113 and 1.215 (respectively). 93% of eyes in the low astigmatic group had an angle of error (AE) within ± 15 degrees and 100% in high astigmatic group. There was an undercorrection in astigmatic treatment. No complications during and after surgery were recorded.
CONCLUSION: ReLEx SMILE surgery for the myopic astigmatic treatment was safe and effective.
Sekundo W, Kunert KS, Blum M. Blum, Small incision corneal refractive surgery using the small incision lenticule extraction (SMILE) procedure for the correction of myopia and myopic astigmatism: results of a 6 month prospective study. Br J Ophthalmol. 2011; 95(3):335-9. https://doi.org/10.1136/bjo.2009.174284 PMid:20601657
Ivarsen A, Asp S, Hjortdal J. Safety and complications of more than 1500 small-incision lenticule extraction procedures. Ophthalmology. 2014; 121(4):822-8. https://doi.org/10.1016/j.ophtha.2013.11.006 PMid:24365175
Denoyer A, et al. Dry eye disease after refractive surgery: comparative outcomes of small incision lenticule extraction versus LASIK. Ophthalmology. 2015; 122(4):669-76. https://doi.org/10.1016/j.ophtha.2014.10.004 PMid:25458707
Lin F, Xu Y, Yang Y. Comparison of the visual results after SMILE and femtosecond laser-assisted LASIK for myopia. J Refract Surg. 2014; 30(4):248-54. https://doi.org/10.3928/1081597X-20140320-03 PMid:24702576
Chernyak DA. Cyclotorsional eye motion occurring between wavefront measurement and refractive surgery. J Cataract Refract Surg. 2004; 30(3):633-8. https://doi.org/10.1016/j.jcrs.2003.08.022 PMid:15050260
Prakash G, et al. Comparison of laser in situ keratomileusis for myopic astigmatism without iris registration, with iris registration, and with iris registration-assisted dynamic rotational eye tracking. J Cataract Refract Surg. 2011; 37(3):574-81. https://doi.org/10.1016/j.jcrs.2010.11.025 PMid:21333879
Zhang J, et al. Vector analysis of low to moderate astigmatism with small incision lenticule extraction (SMILE): results of a 1-year follow-up. BMC Ophthalmol. 2015:15(1):8. https://doi.org/10.1186/1471-2415-15-8 PMid:25618419 PMCid:PMC4328987
Kobashi H, et al. Two-years results of small-incision lenticule extraction and wavefront-guided laser in situ keratomileusis for Myopia. Acta Ophthalmol. 2018; 96(2):e119-e126. https://doi.org/10.1111/aos.13470 PMid:28631305
Chan TC, et al. Vector analysis of astigmatic correction after small-incision lenticule extraction and femtosecond-assisted LASIK for low to moderate myopic astigmatism. Br J Ophthalmol. 2016; 100(4):553-9. https://doi.org/10.1136/bjophthalmol-2015-307238 PMid:26206791
Khalifa MA, et al. Vector analysis of astigmatic changes after small-incision lenticule extraction and wavefront-guided laser in situ keratomileusis. J Cataract Refract Surg. 2017; 43(6):819-824. https://doi.org/10.1016/j.jcrs.2017.03.033 PMid:28732617
Zhang J, Wang Y, Chen X. Comparison of moderate-to high-astigmatism corrections using WaveFront-guided laser in situ Keratomileusis and small-incision Lenticule extraction. Cornea. 2016; 35(4):523-30. https://doi.org/10.1097/ICO.0000000000000782 PMid:26890662
Ganesh S, Brar S, Pawar A. Results of Intraoperative Manual Cyclotorsion Compensation for Myopic Astigmatism in Patients Undergoing Small Incision Lenticule Extraction (SMILE). J Refract Surg. 2017; 33(8):506-512. https://doi.org/10.3928/1081597X-20170328-01 PMid:28787514
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