Correction: The evaluation of a web-based tool for measuring the uncorrected visual acuity and refractive error in keratoconus eyes: A method comparison study

• Marc B. Muijzer, 
• Janneau L. J. Claessens, 
• Francesco Cassano, 
• Daniel A. Godefrooij, 
• Yves F. D. M. Prevoo, 
• Robert P. L. Wisse