A treatise on the diseases of the eye . whose method,with the forms and dimensions of the tube and subsidiary apparatus, are detailed inthe two works already quoted, see note, p. 834. The instruments employed by Du-pcitren are delineated in Frorieps Chirurgische Kupfertafeln, No. xxx., pi. 147.[Fig. 134 represents Dcpcytuexs tube.] 836 DISEASES OF THE LACHRYMAL ORGANS. wards being just such as the projection of the eyebrow would give to aprobe passed into the nasal duct from above. We shall meet with resist-ance at the point of obstruction, and we must employ a gradually increasedpressure to o
A treatise on the diseases of the eye . whose method,with the forms and dimensions of the tube and subsidiary apparatus, are detailed inthe two works already quoted, see note, p. 834. The instruments employed by Du-pcitren are delineated in Frorieps Chirurgische Kupfertafeln, No. xxx., pi. 147.[Fig. 134 represents Dcpcytuexs tube.] 836 DISEASES OF THE LACHRYMAL ORGANS. wards being just such as the projection of the eyebrow would give to aprobe passed into the nasal duct from above. We shall meet with resist-ance at the point of obstruction, and we must employ a gradually increasedpressure to overcome it; the probe then goes on into the nose, from which,on using a handkerchief, a little blood escapes. If we cannot force theobstruction with the blunt end of the probe, we must have recourse to thesharp point. The resistance may be so great, as to render it advisable todesist, and repeat the attempt after an interval of two or three days. Thetube is placed in the nasal duct by means of a steel stilet, [fig. 136,] bent ri?. at a right angle, of which the portion beyond the bend corresponds to thecavity of the tube. The latter must be fairly lodged in the duct, with itsupper or extended portion occupying the lower part of the sac. The skinheals over, the tube provides an artificial passage for the tears, and theimmediate result of the operation appears very favorable. Unfortunately,the future history of these cases is not equally satisfactory. We couldhardly expect, a priori, that a metallic tube would permanently answer thepurpose of the natural duct. We find accordingly, that the artificial sub-stitute, after the lapse of some months, gets out of its place, rising too high,or sinking too low, or that it becomes obstructed. It causes inflammationin some instances, and in others, pain more or less severe, an intolerableaching in the corner of the eye and cheek, which cannot be remedied with-out removing the tube. I have seen all the inconveniences now enumeratedresu
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Keywords: ., boo, bookcentury1800, bookdecade1840, booksubjecteye, bookyear1847
