title: Comment on: 'Effectiveness of a smartphone application for testing near visual acuity'.
authors.affiliation: School of Medicine, Imperial College London, London, UK.
authors.forename: I T
authors.initials: IT
authors.lastname: Hossain
authors.affiliation: School of Medicine, Imperial College London, London, UK.
authors.forename: H H
authors.initials: HH
authors.lastname: Malik
authors.affiliation: School of Medicine, Imperial College London, London, UK.
authors.forename: M
authors.initials: M
authors.lastname: Franka