Title: Clinica dell'apparato visivo II ed.: Seconda edizione, Author: Claudio Azzolini
Title: Macleod Manuale di Semeiotica e Metodologia Medica, Author: Graham Douglas
Title: New Light on the Eyes - Revolutionary and scientific discoveries wich indicate extensive reform and reduction in the prescription of glasses and radical improvement in the treatment of disease such as cataract and glaucoma, Author: R. Brooks Simpkins