Architecture evaluation of the main clear corneal incisions in femtosecond laser-assisted cataract surgery by optical coherence tomography imaging

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Citações na Scopus
6
Tipo de produção
article
Data de publicação
2019
Título da Revista
ISSN da Revista
Título do Volume
Editora
DOVE MEDICAL PRESS LTD
Autores
CHAVES, Mario Augusto Pereira Dias
MEDEIROS, Andre Lins de
VILAR, Cesar Martins Cortez
MAGALHAES, Klayne Rafaella Pereira
GONCALVES, Michelle Rodrigues
Citação
CLINICAL OPHTHALMOLOGY, v.13, p.365-372, 2019
Projetos de Pesquisa
Unidades Organizacionais
Fascículo
Resumo
Purpose: To assess the stability and reliability of femtosecond laser-assisted cataract surgery (FLACS) incisions design and dimensions using anterior segment optical coherence tomography (AS-OCT) imaging. Setting: Renato Ambrosio Ophthalmologic Study Center from Hospital Oftalmologico de Brasilia, Brasilia, Brazil. Design: Prospective nonrandomized controlled case series. Methods: Eyes undergoing FLACS with triplanar main temporal clear corneal incision (CCI) were evaluated at the end of the case. Eyes that required any incision hydration, surgical complications or lacked follow-up were excluded. The AS-OCT was performed after femtosecond delivery; at the end of the case; at 1 day and at 30 days after surgery. Data of pachymetry, endothelial and epithelial gaps, Descemet detachment and CCI architecture were compared. Results: Eleven eyes from 11 patients completed follow-up. Corneal thickness was statistically different between after femtosecond delivery and the end of the case (P-value <0.05), but without difference compared to 30 days evaluation. There was an increase of Descemet detachments (P-value,0.05) and endothelial gaps (P-value =0.0133) at the end of the case compared to post-femtosecond delivery. As for the architecture of the CCI, significant difference was found between the parameters of entry angle and exit angle measured with AS-OCT and the programmed. Conclusion: The AS-OCT was capable of visualizing changes in the cornea at the CCI. Despite the stress caused by manipulation, results indicated good stability of incision and reproducibility of tunnel length. Synopsis: Difference of corneal thickness at the CCI between after femtosecond and after phacoemulsification measurements (P-value,0.05), with increase of endothelial gaps (P-value =0.0133) and Descemet detachments (P-value,0.05).
Palavras-chave
femtosecond, incisions, cataract, pachymetry, optical coherence tomography
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