Myopia control efficacy of second-generation defocus incorporated multiple segments spectacle lenses on fast progressing myopes: Study protocol of a randomised controlled trial - Ying Hon; Rachel Ka Man Chun; Tsz Wing Leung; Hua Qi; Keigo Hasegawa; Ka Yan Leung; Chi Ho To; Carly Siu Yin Lam; Dennis Yan-Yin Tse (PLoS ONE, 2025)