Features of Femtosecond Correction of High Myopia through Small Access

Aim. To modify the calculated parameters of the lenticle extraction refractive surgery through a small access (SMILE), evaluate its safety and clinical efficacy in correcting high myopia.Materials and methods. 34 patients (68 eyes) underwent surgery by a modified SMILE technology under local anesthe...

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Autores principales:	O. V. Pisarevskaya, A. G. Shchuko, T. N. Iureva, E. M. Balgirova, T. N. Frolova, L. S. Khlebnikova
Formato:	article
Lenguaje:	RU
Publicado:	Scientific Сentre for Family Health and Human Reproduction Problems 2019
Materias:	femtosecond surgery smile high myopia Science Q
Acceso en línea:	https://doaj.org/article/9b1b5603b3d94dfa9ae69e77677a0310
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spelling	oai:doaj.org-article:9b1b5603b3d94dfa9ae69e77677a03102021-11-23T06:14:43ZFeatures of Femtosecond Correction of High Myopia through Small Access2541-94202587-959610.29413/ABS.2019-4.4.15https://doaj.org/article/9b1b5603b3d94dfa9ae69e77677a03102019-08-01T00:00:00Zhttps://www.actabiomedica.ru/jour/article/view/2129https://doaj.org/toc/2541-9420https://doaj.org/toc/2587-9596Aim. To modify the calculated parameters of the lenticle extraction refractive surgery through a small access (SMILE), evaluate its safety and clinical efficacy in correcting high myopia.Materials and methods. 34 patients (68 eyes) underwent surgery by a modified SMILE technology under local anesthesia. In all cases, the patients had a high degree of myopia, in 37 % in combination with astigmatism.Uncorrected visual acuity before surgery averaged 0.05 ± 0.11, best corrected visual acuity of 0.94 ± 0.1, the pre-operative spherical refraction component was –7.23 ± 0.75, the cylindrical component was –0.48 ± 0.59.During the operation, to obtain the maximum possible refraction result using the proposed method, the standard operation parameters were changed: the corneal flap thickness was reduced to 100 μm, the neural optical layer by 5 μm, the diameter of the optical zone depended on the residual cornea thickness, which should exceed 280–290 μm. Corneal access was increased by 15–20 degrees.Results. The next day after surgery, monocular uncorrected visual acuity in distance in 73 % of patients was 0.8 or higher, and in 41 % of cases it was equal to or exceeded 1.0. The spherical equivalent on the first day after surgery had a slight hypermetropic shift, which was completely leveled by the year of follow-up. During the surgical intervention and in the postoperative period, no complications were noted.Conclusion. Using the proposed algorithm for calculating the refractive effect of the operation SMILE with a high degree of myopia allows obtaining a high refractive effect and avoiding possible complications.O. V. PisarevskayaA. G. ShchukoT. N. IurevaE. M. BalgirovaT. N. FrolovaL. S. KhlebnikovaScientific Сentre for Family Health and Human Reproduction Problemsarticlefemtosecond surgerysmilehigh myopiaScienceQRUActa Biomedica Scientifica, Vol 4, Iss 4, Pp 102-107 (2019)
institution	DOAJ
collection	DOAJ
language	RU
topic	femtosecond surgery smile high myopia Science Q
spellingShingle	femtosecond surgery smile high myopia Science Q O. V. Pisarevskaya A. G. Shchuko T. N. Iureva E. M. Balgirova T. N. Frolova L. S. Khlebnikova Features of Femtosecond Correction of High Myopia through Small Access
description	Aim. To modify the calculated parameters of the lenticle extraction refractive surgery through a small access (SMILE), evaluate its safety and clinical efficacy in correcting high myopia.Materials and methods. 34 patients (68 eyes) underwent surgery by a modified SMILE technology under local anesthesia. In all cases, the patients had a high degree of myopia, in 37 % in combination with astigmatism.Uncorrected visual acuity before surgery averaged 0.05 ± 0.11, best corrected visual acuity of 0.94 ± 0.1, the pre-operative spherical refraction component was –7.23 ± 0.75, the cylindrical component was –0.48 ± 0.59.During the operation, to obtain the maximum possible refraction result using the proposed method, the standard operation parameters were changed: the corneal flap thickness was reduced to 100 μm, the neural optical layer by 5 μm, the diameter of the optical zone depended on the residual cornea thickness, which should exceed 280–290 μm. Corneal access was increased by 15–20 degrees.Results. The next day after surgery, monocular uncorrected visual acuity in distance in 73 % of patients was 0.8 or higher, and in 41 % of cases it was equal to or exceeded 1.0. The spherical equivalent on the first day after surgery had a slight hypermetropic shift, which was completely leveled by the year of follow-up. During the surgical intervention and in the postoperative period, no complications were noted.Conclusion. Using the proposed algorithm for calculating the refractive effect of the operation SMILE with a high degree of myopia allows obtaining a high refractive effect and avoiding possible complications.
format	article
author	O. V. Pisarevskaya A. G. Shchuko T. N. Iureva E. M. Balgirova T. N. Frolova L. S. Khlebnikova
author_facet	O. V. Pisarevskaya A. G. Shchuko T. N. Iureva E. M. Balgirova T. N. Frolova L. S. Khlebnikova
author_sort	O. V. Pisarevskaya
title	Features of Femtosecond Correction of High Myopia through Small Access
title_short	Features of Femtosecond Correction of High Myopia through Small Access
title_full	Features of Femtosecond Correction of High Myopia through Small Access
title_fullStr	Features of Femtosecond Correction of High Myopia through Small Access
title_full_unstemmed	Features of Femtosecond Correction of High Myopia through Small Access
title_sort	features of femtosecond correction of high myopia through small access
publisher	Scientific Сentre for Family Health and Human Reproduction Problems
publishDate	2019
url	https://doaj.org/article/9b1b5603b3d94dfa9ae69e77677a0310
work_keys_str_mv	AT ovpisarevskaya featuresoffemtosecondcorrectionofhighmyopiathroughsmallaccess AT agshchuko featuresoffemtosecondcorrectionofhighmyopiathroughsmallaccess AT tniureva featuresoffemtosecondcorrectionofhighmyopiathroughsmallaccess AT embalgirova featuresoffemtosecondcorrectionofhighmyopiathroughsmallaccess AT tnfrolova featuresoffemtosecondcorrectionofhighmyopiathroughsmallaccess AT lskhlebnikova featuresoffemtosecondcorrectionofhighmyopiathroughsmallaccess
_version_	1718416962450620416

Features of Femtosecond Correction of High Myopia through Small Access

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