I have met Dr. De Schweinitz and heard him lecture on the eye. I consider him one of the best eye specialists in the country. His experience and study with the eye dates over many years and his book has gone through eight editions. He is professor of ophthalmology in the University of Pennsylvania; Ophthalmic Surgeon to the Philadelphia Polyclinic Hospital, the Philadelphia General Hospital etc., etc. His opinion represents the summary of the investigation of the ophthalmic profession the world over and through all the past down to the present time. “The cause of phlyctenular conjunctivitis is not known.” =Bacteriology.=—At times in the ulcers have been found the staphylococcus pyogenes aureus and albus. They are also found in a normal conjunctival sac. They could not with logic be taken as a causative factor; at least they would be only secondary. If oculists and other students of the eye all had a good deep osteopathic vision to throw light upon these problems many causative factors would take on a new meaning. Such supposed causes as have been mentioned, e. g. eczema, adenoids, rhinitis and malnutrition may easily be secondary to the osteopathic lesions. Micro-organisms may be enabled to act because of trophic and circulatory disturbances to the conjunctiva through disturbed nerve connections from lesions in the cervical and upper dorsal regions. Herpes zoster is purely a trophic nerve disturbance manifestation on the skin as blebs or blisters with more or less neuritis. Any lesion that would affect the integrity of the function of the fifth cranial nerve might easily manifest itself as herpes of the conjunctiva. We believe the osteopathic lesion is primary and fundamental in the causation of most of our phlyctenular conjunctivitis. Of course insanitation, scrofulous diathesis and the exanthemata play their role. A good diagnostician should figure out the relative importance. The history, onset and examination will usually eliminate these conditions. =Symptoms.=—Lachrymation, photophobia, blepharospasm and injected vessels are the chief symptoms. There is pain as well as fear of light. The child fights examination. The attack subsides in ten to fourteen days unless there is multiplicity of blebs. Some patients have repeated attacks for months or years. Many of these cases in medical clinics keep coming for months with repeated attacks. Never leave out careful osteopathic treatment. =Prognosis.=—This is favorable for a final cure. If there should be multiple blebs and frequent recurrence and the cornea is invaded, the prognosis is not good for perfect sight. The pathology goes deep enough to affect Bowman’s membrane of the cornea disturbing the substantia propria. This causes a macular condition of the cornea which impairs sight.