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1.
Vestn Oftalmol ; 135(5): 13-23, 2019.
Artículo en Ruso | MEDLINE | ID: mdl-31714508

RESUMEN

PURPOSE: To compare the effectiveness, safety, predictability and stability of FemtoLASIK procedure in low to moderate myopia using Femto Visum and Femto LDV Z6 femtosecond laser platforms and to evaluate the effect of these procedures on corneal higher-order aberrations. MATERIAL AND METHODS: Russian femtolaser platform (1 MHz) was used to form the corneal flap in the main group consisting of 98 patients (98 eyes) with mean spherical equivalent (SE) of -3.73±1.42 D. Swiss femtolaser platform (5 MHz) was used in the control group (94 patients, 94 eyes; mean SE -3.81±1.44 D). Excimer laser ablation was performed using the Russian platform (500 Hz) in both groups. All patients underwent complete ophthalmological examination. The follow-up period was 12 months. RESULTS: Twelve month postoperatively, in the '1 MHz' group uncorrected visual acuity (UCVA) of 1.0 or better was achieved in 91.8% of patients, and in the '5 MHz' group - in 90.4% (p>0.05). There were no registered losses of 2 or more lines of best-corrected visual acuity (BCVA) in either group. In the '1 MHz' group, predictability of targeted refraction within ±0.5 D was achieved in 91.8% of patients, within ±1.0 D - in 99.0%; in the '5 MHz' group - in 91.5% and 98.9% of patients, respectively (p>0.05). Root-mean-square (RMS) deviation of corneal higher-order aberrations in the 6-mm optical zone was increased by 0.072 µm (by 1.21 times) and by 0.077 µm (by 1.22 times) in the '1 MHz' and '5 MHz' groups (p>0.05), respectively. CONCLUSION: The FemtoLASIK procedures performed using Russian (1 MHz) and Swiss (5 MHz) femtosecond laser platforms are effective, safe, predictable, have stable postoperative visual and refractive outcomes, and lead to increase in RMS of corneal higher-order aberrations using both platforms in patients with low to moderate myopia. There were no statistically significant differences between the two femtolaser platforms (p>0.05) for all examined parameters.


Asunto(s)
Miopía , Estudios de Seguimiento , Humanos , Queratomileusis por Láser In Situ , Láseres de Excímeros , Refracción Ocular , Federación de Rusia , Resultado del Tratamiento
2.
Vestn Oftalmol ; 133(6): 23-29, 2017.
Artículo en Ruso | MEDLINE | ID: mdl-29319666

RESUMEN

The diversity of methodological approaches and lack of pathogenetically reasonable tactics for patients with combined ocular injuries became the basis for the development and systematization of surgical rehabilitation stages of patients, in whom post-traumatic cataract is combined with post-traumatic aniridia and corneal scarring. AIM: to construct a visual rehabilitation approach to patients with post-traumatic defects of the anterior eye segment following optical-reconstructive surgery that involved implantation of an iris-lens diaphragm (ILD). MATERIAL AND METHODS: We have analyzed 80 reconstructive cases with ILD implantation in patients with post-traumatic aniridia and corneal damage. These patients constituted the first study group (Group 1). We have also investigated 58 eyes with residual ametropy and stable visual function 1 year after ILD implantation before and after conducting a laser keratorefractive surgery. These patients were assigned to the second study group (Group 2). RESULTS: Rehabilitation approach to patients after anterior segment injuries that has been proposed allows to achieve high clinical and functional results and reduce the risk of intra- and postoperative complications. CONCLUSION: The proposed approach to patients after optical-reconstructive surgery with iris-lens diaphragm implantation followed by keratorefractive surgery is an effective method of visual rehabilitation of anterior eye segment post-traumatic defects.


Asunto(s)
Aniridia , Lesiones Oculares Penetrantes , Implantación de Lentes Intraoculares , Procedimientos Quirúrgicos Refractivos , Adulto , Aniridia/diagnóstico , Aniridia/etiología , Aniridia/cirugía , Segmento Anterior del Ojo/diagnóstico por imagen , Segmento Anterior del Ojo/lesiones , Segmento Anterior del Ojo/cirugía , Lesiones Oculares Penetrantes/complicaciones , Lesiones Oculares Penetrantes/diagnóstico , Lesiones Oculares Penetrantes/rehabilitación , Femenino , Humanos , Iris/diagnóstico por imagen , Iris/cirugía , Implantación de Lentes Intraoculares/instrumentación , Implantación de Lentes Intraoculares/métodos , Implantación de Lentes Intraoculares/rehabilitación , Lentes Intraoculares , Masculino , Procedimientos Quirúrgicos Refractivos/métodos , Procedimientos Quirúrgicos Refractivos/rehabilitación , Federación de Rusia , Resultado del Tratamiento , Agudeza Visual
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