Фоторефрактивная кератэктомия как приоритетный метод докоррекции остаточных аметропий

Abstract

Purpose. To show the effectiveness and safety of the correction of residual ametropia by the PRK method after previously performed keratorefractive operations LASIK, FemtoLASIK, ReLEx SMILE. Material and methods. All patients were divided into 3 groups: Group 1 – previously performed LASIK surgery with insufficient stroma thickness under the valve and patients with unknown parameters of the corneal flap operated in third-party clinics 35 patients (50 eyes), age 46.3 ± 21.9 years, the value of the spherical equivalent – 2.41 ± 1.45. Group 2 – patients after femtolasik 6 patients (6 eyes), age 30 ± 8.3 years, spherical equivalent value – 1.83 ± 0.76. Group 3 – patients after ReLExSMILE 8 patients (11 eyes), age 33 ± 4.4 years, spherical equivalent value – 0.88 ± 0.66. The minimum period after the initial keratorefractive surgery was 1 year, the maximum follow-up period was 4 years. Results. When analyzing the results 6 months after the operation of photorefractive keratectomy: group 1 – the value of the spherical equivalent – 0.26 ± 0.46; group 2 – 0.11 ± 0.2; group 3 – 0.19 ± 0.34. In Group 1, 4 patients (5 eyes) had a loss of lines (3 patients (4 eyes) – 1 line, 1 patient (1 eye) – 2 lines) of maximum visual acuity, all other patients had UDVA to CDVA before the operation of PRK. In groups 2 and 3, the maximum figures of visual acuity were taught. Conclusions. The use of transepithelial photorefractive keratectomy allows to obtain high clinical and functional results, is a safe, easy-to-perform, universal and highly effective method of correcting residual ametropias after various previously performed keratorefractive operations. Keywords: PRK, PRK after LASIK, PRK after FemtoLASIK, PRK after SMILE.