. A Reference handbook of the medical sciences embracing the entire range of scientific and practical medicine and allied science . least whenthe eyes are open and in use, there is a constant, thoughslight, flow of tears, which disappear in part by evapor-ation from the surface of the eye, and in part by evapor-ation from the mucous membrane of the nostril after 393 *;|>aratii!>i. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. having passed through the nasal duct.* In order thatthe chainage of tlie eye shall be perfect, it is essentialnot only tliat the puncta and th<
. A Reference handbook of the medical sciences embracing the entire range of scientific and practical medicine and allied science . least whenthe eyes are open and in use, there is a constant, thoughslight, flow of tears, which disappear in part by evapor-ation from the surface of the eye, and in part by evapor-ation from the mucous membrane of the nostril after 393 *;|>aratii!>i. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. having passed through the nasal duct.* In order thatthe chainage of tlie eye shall be perfect, it is essentialnot only tliat the puncta and th< lachrymal canalsshall be ])ervious. liuf Ihat the eyelids shall be in suchposition that the ])inicla are in apjiosiliou with theball, otherwise the tears fail to find I heir way into thecanaliculi. The lachrymal gland is, comparativelyspealiing, rarely the seat of disease; affections of thedrainage apparatus are, on the other hand, of very com-mon occurrence. TnELACHiiVMAi. Gland. — aftlielachri/iiKil (Jiind. thuugh from its protected positionit is little exposed to external violence, has happened in. Fig. 3090.—Hypertniphied lUaiid. a few instances, but is an accident of nf the ghiiid has also been observed, and tiiename ^(Incryiiatlemilgia was given to it by A. Schmidt,who first described it. Severe lancinating pain in theregion of the gland, intolerance of light, and excessivelachrymation are the symptoms which characterize is said to occur most frequently in children, and inwomen in the puerperal state; also in gouty is liable to become chronic, and relapses are apt to oc-cur. In this country, at least, it is a very uncommonaffection, and the writer, if he has met with such a case,has failed to recognize it. The application of moist heatis recommended as a useful remedy. The olcatc of mor-phine, or of morphine and at]opiue, or of morjihine andcocaine, to be rublied ujiou the brow and lid,
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