These and other similar instances seem to show that the disease of the bird may become so virulent as to be communicated to man, and the disease of man so potent as to be transmissible to the bird. Every precaution therefore should be taken to prevent infection passing from one to the other.
FOLLICULAR CONJUNCTIVITIS.
Common in dogs. Violent congestion with enlargement of lymph follicles, or beneath the nictitans, dark red, like millet seed, also over sclera and lids. Enlarged lymph follicles with excess of lymphoid cells. Often chronic. Entropion. Infection. Treatment: astringent and antiseptic lotions: lunar caustic: cocaine and crushing of follicles: pure air: excision of nictitans.
Fröhner has drawn attention to the frequency of this affection in the dog, which according to him attacks 40 per cent. of the race. It is especially liable to begin on the inner surface of the membrana nictitans, and though it may be at first somewhat hidden by the severe congestion, yet when that subsides in part, the swollen follicles can be seen as dark red elevations, the size of a millet seed, when the nictitans has been everted. It may extend over the sclerotic and palpebræ. Microscopically these swellings are found to be enlarged lymph follicles, with an excess of lymphoid cells.
The disease tends to assume a chronic course and may cause entropion and other troublesome lesions. The diagnosis depends on the recognition of the swollen follicles, and especially in the depth of the conjunctival sac.
It is presumably infective yet all Fröhner’s inoculation gave negative results.
Treatment. In the earlier stages the common astringent and antiseptic lotions may be used. Sublimate, or boric acid lotions are especially valuable for their antiseptic properties. Should these fail, the eyelid and nictitans may be inverted and the individual follicles touched with a fine pencil of lunar caustic, the resulting smarting being lessened by application of cold water. In case they should still prove obstinate, the conjunctiva may be cocainized and the follicles individually crushed with ciliary forceps. Pure out door air is a prime essential in the treatment.
In extreme cases Fröhner counsels the excision of the membrana nictitans.
NEOPLASMS OF THE CONJUNCTIVA.
Pinguecula: fatty growth: Lipoma: Melanoma: Dermoid tumor in young dogs, calves, sheep. Cocainize the part and excise. Cold water: silver nitrate. Polypus. Pterygium.