Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/77630
Título: | Posterior chamber phakic intraocular lenses for the correction of myopia: factors influencing the postoperative refraction |
Autor(es): | Serra, Pedro Sánchez Trancón, Ángel Torrado Sierra, Oscar Baptista, António M. G. Cerpa Manito, Santiago |
Palavras-chave: | Phakic intraocular lens Implantable collamer lens Myopia Postoperative refraction Vault Vertex distance |
Data: | 16-Dez-2021 |
Editora: | Multidisciplinary Digital Publishing Institute (MDPI) |
Revista: | Optics |
Citação: | Serra, P.; Sánchez Trancón, Á.; Torrado Sierra, O.; Baptista, A.; Cerpa Manito, S. Posterior Chamber Phakic Intraocular Lenses for the Correction of Myopia: Factors Influencing the Postoperative Refraction. Optics 2021, 2, 292-305. https://doi.org/10.3390/opt2040028 |
Resumo(s): | Posterior chamber phakic intraocular lens implantation is a refractive technique for the correction of myopia. This study aimed to identify those factors contributing to variability in postoperative refraction. Methods: This retrospective study evaluated 73 eyes (one eye per patient) implanted with myopic implantable collamer lenses (ICL). Eyes were divided into two groups, the low myopic group (LMG) (ICL > −9.5 DS) and the high myopic group (HMG) (ICL ≤ −9.5 DS), to compare the predictability, efficacy index, and postoperative refraction between groups. The association of postoperative refraction with anatomical, demographic, and optical features was assessed through correlation analysis and investigated using ray-tracing. Results: Postoperative refraction at 3 months for the whole group was close to emmetropia at −0.02 ± 0.37 DS, the LMG tended toward myopia and the HMG, toward hyperopia. The results showed that 65% and 54% of the eyes had postoperative refraction of within ±0.25 DS, respectively, in the LMG and HMG, and in both groups, 100% were within ±1.00 DS. ICL implantation had a higher efficacy index in the HMG (1.13 ± 0.15) than in the LMG (1.04 ± 0.15). Postoperative refraction was positively associated with the vault (R = 0.408) and negatively correlated with ICL power (R = −0.382). Conclusion: The predictability and effectiveness of ICL implantation is high in a wide range of myopias. Considering the expected vault and including accurate vertex measurements would contribute to improving the predictability of the results. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/77630 |
DOI: | 10.3390/opt2040028 |
ISSN: | 2673-3269 |
Versão da editora: | https://www.mdpi.com/2673-3269/2/4/28 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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optics-02-00028-v2.pdf | 1,43 MB | Adobe PDF | Ver/Abrir |
Este trabalho está licenciado sob uma Licença Creative Commons