Agreement between Lea Symbols and Patti Pics visual acuity in children and adults Arjun Sapkota; Sanjeeta Sitaula; Gauri Shankar Shrestha; Niraj Dev Joshi; Bipin Koirala; Nabin Paudel;

Comparison, within-session repeatability and normative data of three phoria tests Alessio Facchin; Silvio Maffioletti;

Measuring visual acuity and spherical refraction with smartphone screens emitting blue light Rosa María Salmerón-Campillo; Félix Tomás Varona-Gómez; Mari Ogino; Stephen Hunter; Vincent Hussey; Donny W. Suh; Rujuta Gore; Mateusz Jaskulski; Norberto López-Gil;