The effect of light and outdoor activity in natural lighting on the progression of myopia in children

• Autor(a) principal: Sánchez-Tocino, H.
• Data de Publicação: 2019
• Outros Autores: Villanueva Gómez, A., Gordon Bolaños, C., Alonso Alonso, I., Vallelado Alvarez, A., García Zamora, M., Francés Caballero, E., Marcos-Fernández, M., Schellini, S. [UNESP], Galindo-Ferreiro, A.
• Tipo de documento: Artigo
• Idioma: eng; fra
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://dx.doi.org/10.1016/j.jfo.2018.05.008; http://hdl.handle.net/11449/188496
• topic: Children; Myopia; Outdoor activities; Progression; Risk factors

Purpose: To investigate potential risk factors for the progression of myopia. Methods: Prospective study. Myopic progression was evaluated by cycloplegic autorefraction and axial length (AL) every 6 months in children 6 to 15 years old. Univariate analysis and multiple logistic regression were applied. Results: Around 82 children with median age of 10.3 ± 2.3 years. Myopia progressed by −0.816 ± 0.6 D over 18 months. Increased myopic spherical equivalent refraction (SER) was correlated with increase in AL (P < 0.001). Univariate analysis found SER to be significantly associated with: age, especially between 6 and 9.4 years old (P = 0.001), parental myopia (P = 0.028), and less time spent outdoors (P = 0.009). There was a significantly greater increase in SER during months with the least daylight hours (P < 0.001). Conclusion: Outdoor activities and daylight have a protective effect against increased AL and progression of myopia. Younger children with significant myopia should be monitored closely, especially those around 6 years old with myopic parents.