Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/79861
Título: | The effect of accommodation on peripheral refraction under two illumination conditions |
Autor(es): | van Ginkel, Raquel Mechó, María Cardona, Genis González-Méijome, José Manuel |
Palavras-chave: | peripheral refraction accommodation aberrometry relative peripheral refractive error IRX3 aberrometer |
Data: | 23-Mai-2022 |
Editora: | Multidisciplinary Digital Publishing Institute |
Revista: | Photonics |
Citação: | van Ginkel, R.; Mechó, M.; Cardona, G.; González-Méijome, J.M. The Effect of Accommodation on Peripheral Refraction under Two Illumination Conditions. Photonics 2022, 9, 364. https://doi.org/10.3390/photonics9050364 |
Resumo(s): | The clinical importance of peripheral refraction as a function of accommodation has become increasingly evident in the last years with special attention given to myopia control. Low order ocular aberrations were measured with a Hartmann–Shack aberrometer in a sample of 28 young emmetropic subjects. A stationary Maltese cross was presented at 2.5 D and 5.0 D of accommodative demand and at 0°, 10° and 20° of eccentricity in the horizontal visual field under two different illumination conditions (white and red light). Wavefront data for a 3 mm pupil diameter were analyzed in terms of the vector components of refraction (M, J0 and J45) and the relative peripheral refractive error (RPRE) was calculated. M was myopic at both accommodative demands and showed a statistically significant myopic increase with red illumination. No significant change in J0 and J45 was found with accommodation nor between illumination conditions. However, J0 increased significantly with eccentricity, exhibiting a nasal-temporal asymmetry. The RPRE was myopic at both accommodation demands and showed a statistically significant hyperopic shift at 20° in the nasal retina. The use of red light introduced statistically and clinically significant changes in M, explained by the variation of the ocular focal length under a higher wavelength illumination, increasing the experimental accommodative demand. These findings may be of relevance for research exploring peripheral refraction under accommodation, as the choice of target illumination is not trivial. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/79861 |
DOI: | 10.3390/photonics9050364 |
e-ISSN: | 2304-6732 |
Versão da editora: | https://www.mdpi.com/2304-6732/9/5/364 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | ASSESSMENT AND ENHANCING VISUAL PERFORMANCE (2018 - ...) |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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photonics-09-00364.pdf | 2,06 MB | Adobe PDF | Ver/Abrir |
Este trabalho está licenciado sob uma Licença Creative Commons