DISEASE OP THE MEIBOMIAN GI^ANDS. BLEPHAR- 

 ADENITIS. SEBORRHCEA. 



This is a blepharitis of the edges of the lids which are swollen, 

 red, and incrusted along their margins with scabs and sebaceous 

 concretions. When this scurf is removed the skin is found to be 

 red, tender and glistening. The glands are the seat of conges- 

 tion, and produce a modified secretion in excess, which dries into 

 crusts instead of preserving its normal oleaginous consistency. 

 As these glands open into the follicles of the eyelashes, their 

 walls are implicated and shedding of the lashes is a common re- 

 sult. It may be assumed that this affection is often associated 

 with the proliferation of microbes in the glands and gland ducts, 

 while in other forms the presence of acari is the controlling fac- 

 tor. Wilson found the demodex folliculorum in the Meibomian 

 glands of the horse, Oschatz in those of the sheep, and others in 

 those of the dog. 



Treatment. Smear the margins of the lids with vaseline and 

 when the crusts have been thoroughly softened wash them off 

 with Castile soap and warm water. Then dress the margin with 

 the ointment of the yellow oxide of mercury i, in vaseline lo. 

 If demodex is suspected they may be squeezed out and the lids 

 washed frequently with spirits of wine as a solvent. 



HORDEOLUM. STYE. ACNE. 



• Like acne of the skin in general, this consists in inflammation 

 and suppuration of a hair follicle and sebaceous gland. The 

 whole lid or a large part of it may be swollen, but by stroking it 

 with the finger, a hard, rounded, very tender spot will be de- 

 tected, and as the disease advances this develops a minute collec- 

 tion of pus. A specially wide orifice favors the entrance of the 

 pus microbes, and the onset of the disease. It has been noted in 



dogs (Frbhner). 



For abortive treatment Fick recommends dry heat from a pocket 

 handkerchief or a heated teaspoon. If pus is present it must be 

 evacuated, and recurrence guarded against by cleanliness and 



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