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Post a Comment Phacoemulsification in patients after previous implantation of a complete intrastromal ring into a corneal transplant
- Authors: Sinitsyn M.V.1, Pozdeyeva N.A.1
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Affiliations:
- S.N. Fyodorov Eye Microsurgery Federal State Institution, the Cheboksary branch
- Issue: Vol 15, No 4 (2022)
- Pages: 27-33
- Section: Original researches
- URL: https://journals.rcsi.science/ov/article/view/144090
- DOI: https://doi.org/10.17816/OV114728
- ID: 144090
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Abstract
BACKGROUND: The MyoRing implantation into a corneal transplant can significantly compensate for irregular post-keratoplastic astigmatism. However, the cataract that occurs in this category of patients and the lack of information in the literature on its phacoemulsification and the calculation of a toric intraocular lens (tIOL) power in them determines the relevance of our study.
AIM: The aim of the study is to conduct a clinical and functional analysis of phacoemulsification in patients after previously performed implantation of a MyoRing into a corneal transplant.
MATERIALS AND METHODS: We operated on 21 patients (21 eyes) who had previously undergone the MyoRing implantation into a corneal transplant. According to keratotopography, all patients were diagnosed with a regular form of corneal astigmatism. All patients underwent phacoemulsification with tIOL implantation. When calculating the tIOL power, its diopter value was corrected depending on the average value of the corneal transplant keratometry according to the keratotopogram data. The observation period duration was 6 months.
RESULTS: One month after the procedure, there was an increase in uncorrected visual acuity by 0.2 ± 0.9 LogMAR, best corrected visual acuity by 0.3 ± 1.0 LogMAR, the spherical component of refraction — up to –0.4 ± 0.44 D, the cylindrical component of refraction — up to –0.62 ± 0.18 D, all of which did not change later on.
CONCLUSIONS: Phacoemulsification with tIOL implantation, with its power calculated taking into account an additional correction for its diopter value, is an effective, predictable and safe method of treating patients after previously performed MyoRing implantation into a penetrating corneal transplant.
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##article.viewOnOriginalSite##About the authors
Maksim V. Sinitsyn
S.N. Fyodorov Eye Microsurgery Federal State Institution, the Cheboksary branch
Author for correspondence.
Email: mntksinicin@mail.ru
ORCID iD: 0000-0002-7285-1782
Cand. Sci. (Med.), MD of Highest Qualification, Head of the Children’s Department
Russian Federation, 10, Traktorostroitelei av., Cheboksary, 428028Nadezhda A. Pozdeyeva
S.N. Fyodorov Eye Microsurgery Federal State Institution, the Cheboksary branch
Email: npozdeeva@mail.ru
ORCID iD: 0000-0003-3637-3645
Dr. Sci. (Med.), Assistant Professor, MD of Highest Qualification, Director of Branch
Russian Federation, 10, Traktorostroitelei av., Cheboksary, 428028References
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