A dictionary of practical surgery: containing a complete exhibition of the present state of the principles and practice of surgery, collected from the best and most original sources of information, and illustrated by critical remarks (Volume 2).

  • Samuel Cooper
Date:
1810
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Licence: Public Domain Mark

Credit: A dictionary of practical surgery: containing a complete exhibition of the present state of the principles and practice of surgery, collected from the best and most original sources of information, and illustrated by critical remarks (Volume 2). Source: Wellcome Collection.

Provider: This material has been provided by the National Library of Medicine (U.S.), through the Medical Heritage Library. The original may be consulted at the National Library of Medicine (U.S.)

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    \u LiABIA LEPORINA. See Harelip. LAGOPHTHALMIA, OR LA- GOPHTHALMOS, (from x«j*f, a liare; and o$$ak/u.oc, an eye.) 77ie Hare's Eye. A disease, in which the eye cannot be shut. The following complaints may arise from it; a constant weeping1 of the organ, in consequence of the inter- ruption of the alternate closure and opening of the eye-lids, which motions so materially contribute to propelling the tears into the nose; blindness in a Strong light, inconsequence of the ina- bility to moderate the rays, which fall on the eye; on the same account, the sight becomes gradually very much weakened; incapacity to sleep where there ia any light; irritation, pain, and redness of the eye, from this organ be- ing exposed to the extraneous substan- ces in the atmosphere, without tin lids having the power of washing them away, in the natural manner. An enlargement, or protrusion of the whole eye, or a staphyloma, may obvi- ously produce lagophthalmos. Bui, af- fections of the upper eye-lids ai common causes. Heister savs, he has seen the complaint originate from a dis- of the lower one. Now and then lagophthalmos depends on paralysis of the orbicularis muscle. A cicatrix, af- ter a wound, ulcer, or burn, is the most frequent cause. When lagophthalmos arises from a paralytic affection of the orbicularis palpebrarum, let the eye lids be rubbed with the tinctura cantharidum, and cold water, or the linimentum campho- rs. Electricity is also considered as a principal means of cure, (Chandler) to- gether with the exhibition of bark, the use of the shower-bath, &c. When the affection arises from spasm of the levator palpebral superioris, elec- tricity, a small blister on the neigh- bouring temple, and rubbing the eye- lid and eve-brow with the tinctura opii, are good means. Internal antispasmo- dic medicines may also be tried. When lagophthalmos arises from the contraction of a cicatrix, its relief is to atempted precisely on the principles as the ectropium. (See tr opium.) In some cases, it will not be amiss, especially at night, to lay plasters, drawing in contrary directions upon each lid, and to assist them by a com- press and bandage. {Chandler.) The inconveniences, depending on the eye being unable to shelter itself from the light, are to be obviated by wearing a green shade, till the disor- der is cured. ft Whoever is acquainted with Ger- man, and is desirous of more minute in- formation on this subject, may find an excellent account of lagophthalmos in Jiichter's Anjangsgr. der Wundarnz. Band. 2. Von dem Hassenauge. See also Chandler on the Diseases of the Eye. Chap. 2. LARYNGOTOMY, (from \u?vyl, the larynx; and t<./j.w, to cut.) The cut- ting an opening into the larynx. See Bronchotomy.) LATERAL OPERATION. One mode of cutting for the stone is so termed. (See Lithotomy.) I.ENS CRYSTALLINE OPAQUE. (See Cataract.) LENTICULAR, (from lenticulaire, doubly convex.) An instrument, con- tained in every trephining case, and employed for removing the jagged par- >f bone from the edge of the per- foration, made in the cranium with the trephine. One side of its blade is con- vex, the other concave; and one of its edges is sharp. On the end ofthe blade is lixed a little shallow cup, with its concavity towards the handle of the in- strument. This part serves the purpo- ses of receiving the little pieces of bone, when detached, keeping the end ofthe blade from hurting the dura mater, and, when applied under the margin of the opening, enables the operator to guide the edge ofthe instrument all round it, with steadiness and security. [We take the liberty to remark, with- out fear of contradiction from practical surgeons, that this instrument is never, - rv, and that the trephining case will be suftVu nth perfect with out it.]