The author presents his material for the layman and makes a rather dramatic effort to explain the various diseases and anomalies of the visual organ and its adnexa in simple language and by example. At times the language isn't quite simple enough. In the preface he defines what he calls the four O's: optician, optometrist, oculist and ophthalmologist. The chapter subjects are interesting. The first, "Your Eyes Have Told Me," covers the relation of the eyes to general disease; "The Sins of the Fathers" is on what he calls hereditary Syphilis; "The Strange Case of Lady Nicotine and John Barleycorn" is about toxic amblyopia; "The Siamese Twins" deals with sympathetic ophthalmia; "The Lady With the Hard Eyes" is about glaucoma; "The Popeye Clinic" describes proptosis, and "Monarch of All I Survey" presents the subject of visual fields. "Thruthe Looking Glass" and "Fundus Land" deal with the ophthalmoscope and fundus disease.