. A system of surgery (Volume 2) . d and duly perfifled in,obflructions which proceed from this caufe will veryfrequently be removed ; but when the parts have beenallowed to remain long in an inflamed ftate before any ,remedies are ufed, it often happens that a cure cannotafterwards be accomplifhed even by the moft completeremoval of the inflammation : For as inflamed parts,when kept long in contact, are every where apt to ad-here; fo the fides of the lachrymal paffages, whenmuch inflamed, very readily unite together ; by whicha very obftinate variety of the difeafe is neceffarily pro-duced ;
. A system of surgery (Volume 2) . d and duly perfifled in,obflructions which proceed from this caufe will veryfrequently be removed ; but when the parts have beenallowed to remain long in an inflamed ftate before any ,remedies are ufed, it often happens that a cure cannotafterwards be accomplifhed even by the moft completeremoval of the inflammation : For as inflamed parts,when kept long in contact, are every where apt to ad-here; fo the fides of the lachrymal paffages, whenmuch inflamed, very readily unite together ; by whicha very obftinate variety of the difeafe is neceffarily pro-duced ; and which fhows, in a ftrong point of view,the propriety of treating every affection of this naturewith the greateft attention from the beginning ; forby doing fo, we frequently have it in our power toprevent this obftinate kind of obftruction, whichnothing but a very painful operation will afterwardsremove. When the obftruction is feated in the punfcta lach-rymalia, or in the duels leading from thefe to the fac, and j PLATE XXXV]. Sect. XVIII. Difcafcs of the Eyes. 361 and when it is found to continue after the inflamma-tion which gave rife to it is removed, we are to endeav-our to remove it by inferting a fmili probe into eachpunclum, fo as to pals it along the courfe of the duelsinto the lachrymal fac. In this manner the openingsmay be rendered pervious, and may be afterwards pre-ferved by injecling, twice or thrice daily with a fmallfyringe, a weak foiution of alum or of faccharum fa-turni; and by keeping at other times fmall lead probesconftantly inferted, till the fides of the du6ts are ren-dered perfectly callous ; when the tears finding a freepaffage into the fac, a cure will thus be accomplifhed. This, we mult acknowledge, is a very nice opera-tion : but whoever is verfant in the anatomy of thefeparts, and is acquainted with the exacl courfe of thelachrymal duds, will find no great difficulty in effect-ing it. The probes reprefented in Plate 5. and 6. and
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