The symptom “while he turns the eye or it is pressed, the eyeball is painful, can hardly move it,” indicates its use in acute retrobulbar neuritis, which causes this symptom exactly and is well known to be frequently due to a rheumatic diathesis. The same symptom may call for its use in tenonitis, in which the stiffness, difficulty of and pain on moving the eye are specially prominent and which also has swelling and œdema of the upper lid, chemosis of the conjunctiva, and protrusion of the eyeball; all symptoms of rhus tox. The idiopathic form of this disease is almost always rheumatic or gouty in origin, furnishing still another indication for the remedy. In orbital cellulitis we have swelling of the lids, chemosis, protrusion of the eyeball, almost complete abolition of motion with pain on the attempt and also on pressure, aching in and around the eye, with the probable formation of pus in the deeper structures, all conditions curable by rhus tox., which is one of the best remedies for this disease whatever may be its origin, traumatic or otherwise, and has cured many of the most desperate cases. In panophthalmitis, or suppurative inflammation of the eyeball, we find the swollen lids, difficulty of, and pain on motion, chemosis of the conjunctiva, severe pain in the eyeball, lachrymation, etc., again indicating the remedy. Rhus tox. is one of the few drugs that have cured this most fatal of lesions, and its success in restoring the integrity of the eye, in some cases where this result has seemed almost impossible, is a matter of record. The symptom “heaviness and stiffness of the eyelids, like paralysis, as if difficult to move the eyelids,” would seem to indicate its use in ptosis, and this condition as well as paralysis of certain of the ocular muscles, is curable by rhus tox., especially if due to wetting or dampness. Such cures have been made frequently in the clinics of the Ophthalmic Hospital. Erysipelas of the eyelids often presents the characteristic symptoms of rhus. Of course the swelling of the lids is always present, but many of these cases have in addition the chemosis, hot lachrymation, the characteristic pains and aggravation, restlessness, vesicular eruptions, etc., and it is a valuable and efficient remedy when these exist. Although rhus tox. is specially useful in the most serious inflammations of the deeper and more important structures of the eyeball and surrounding tissues, its sphere is not confined to these conditions alone, but seems to cover almost all the acute diseases to which the visual organs are subject. Given a rheumatic origin, especially if it be from exposure to damp or wet weather, with profuse lachrymation (pain in and about the eye) a tendency to chemosis of the conjunctiva, œdema of the lids, photophobia, and the characteristic aggravation and restlessness at night, and this valuable drug will rarely be found wanting in any of the inflammations of the conjunctiva, cornea, or lids.