Atlas of the external diseases of the eye : including a brief treatise on the pathology and treatment / by O. Haab ; Authorized translation from the German, edited by G.E. de Schweinitz.

  • Haab O. (Otto), 1850-1931.
Date:
1899
Catalogue details

Licence: Public Domain Mark

Credit: Atlas of the external diseases of the eye : including a brief treatise on the pathology and treatment / by O. Haab ; Authorized translation from the German, edited by G.E. de Schweinitz. Source: Wellcome Collection.

Provider: This material has been provided by the Royal College of Physicians of Edinburgh. The original may be consulted at the Royal College of Physicians of Edinburgh.

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    skin cannot be raised with the lid, and hangs down like a pouch over the palpebral margin, producing a marked deformity. According to Fuchs, the skin is very thin and slightly hyperemic. The two anomalies may be cor- rected by excising a portion of the redundant skin and attaching it by means of sutures to the upper margin of the tarsus (Hotz’s operation). The foregoing anomalies are rare compared with the conditions termed ectropion and entropion. Bctropion (also called eversion of the lid-margin when very slight) occurs in the lower lid when the skin and tarsus become relaxed—senile ectropion ; or in consequence of cicatricial contraction of the skin after traumatism— cicatricial ectropion. The cicatricial form develops in caries of the orbital margin, after burns, scalds, ulcera- tions, etc., or through the gradual cicatrization attending the repeated excoriations and eczematous eruptions brought on by constant maceration and wiping of the eyes in dacryostenosis and chronic catarrh. The para/iftic form is produced by palsy of the facial nerve which supplies the orbicularis palpebrarum. The lower lid only is everted, the upper lid being drawn u])- ward by the j)reponderance of the levator and INIiiller’s muscle. The direct result is lagophthalmos, or inability to close the eye, esja-cially during sleep, which is apt to pro- duce conjunctival catarrh. Another important form of lagophthalmos is due to protrusion of the eye from tumors of the orbit aud exophthalmic goiter. Spastic ectropion is sometimes met with in young per- sons, due to abnormal contraction of the orbicularis palpe- brarum. It is corrected by replacement and a suitable bandage. The remaining varieties of ectropion demand surgical treatment, by means of which, above all things, the elonga- tion of the lid that is often j)resent must be corrected by excising a wedge-shaped portion of the tarsus and conjunc- tiva (after the method of Kuhnt or Dimmer’s modification of his operation). If the ectropion is slight, Snellen’s