Open AccessComparative analysis of optical aberrations, anatomical and optical parameters of the cornea in glaucoma surgery
Author(s) -
В. В. Нероев,
А. А-Г. Алиев,
М. М. Нурудинов
Publication year - 2018
Publication title -
rossijskij oftalʹmologičeskij žurnal
Language(s) - English
Resource type - Journals
eISSN - 2587-5760
pISSN - 2072-0076
DOI - 10.21516/2072-0076-2018-11-4-24-28
Subject(s) - cornea , meridian (astronomy) , ophthalmology , medicine , glaucoma , open angle glaucoma , radius of curvature , corneal topography , curvature , mathematics , mean curvature , physics , mean curvature flow , astronomy , geometry
Purpose . A combined comparative study of the impact of antiglaucomatous surgeries on the anatomical and optical parameters of the cornea. Materials and methods . The study involved 38 patients (38 eyes) aged 43 to 75 with primary open-angle glaucoma (POAG), which were divided into 2 groups. Patients of group I (15 eyes) underwent classical deep sclerectomy (DSE), while those of group II (23 eyes), had non-penetrating deep sclerectomy (NDSE). All patients underwent a comprehensive examination before and after surgery, including precision visometry, corneal topography, OCT pachymetry. Results . Group I revealed a significant change in the parameters on the 3rd day after the surgery; in particular, the average value of corneal astigmatism increased from -0.93 D to -3.62 D, the curvature radius of the cornea in the vertical meridian increased from 7.56 ± 0.07 mm to 8.34 ± 0.04 mm, the thickness of the central cornea changed from 514.5 ± 0.04 μm to 520.6 ± 0.06 μm. In group II, the corneal astigmatism increased from -0.86 D to -2.75 D, and the curvature radius of the cornea in the vertical meridian changed from 7.72 ± 0.05 mm to 8.12 ± 0.03 mm, the central thickness of the cornea increased from 515.4 ± 0.04 to 516.8 ± 0.12 μm. Conclusion . The degree of surgically induced changes of anatomic and optical parameters of the cornea in POAG patients depended on the amount of intervention: NDSE has a lesser effect on these parameters than classical DSE.