The commoner diseases of the eye : how to detect and how to treat them . de Weckers Iris Scissors. time assuring him that the pain will not be severeand will last for an instant only. Care should now be taken that the edges ofthe cut iris are replaced either with the repositoror, what is still safer, by gently stroking thecornea with a rubber spoon. The width of thecorneal opening should be twice as wide as the 398 COMMONER D1SKASES OF THE EYE iris coloboma which, in this form of iridectomy,should be a small one. Removal of Senile Cataract.—Before attempt-. Operation of wit
The commoner diseases of the eye : how to detect and how to treat them . de Weckers Iris Scissors. time assuring him that the pain will not be severeand will last for an instant only. Care should now be taken that the edges ofthe cut iris are replaced either with the repositoror, what is still safer, by gently stroking thecornea with a rubber spoon. The width of thecorneal opening should be twice as wide as the 398 COMMONER D1SKASES OF THE EYE iris coloboma which, in this form of iridectomy,should be a small one. Removal of Senile Cataract.—Before attempt-. Operation of within the anterior chamber. (deSchweinitz.) ing the operation of extraction—the only ef-ficient treatment of this form of cataract—cer-tain important considerations must not be for-gotten. 1. The cataract must be mature. 2. The patients health should be fairly good,else the healing process may be interfered with. CATARACT AND OTHER AFFECTIONS 299 As hard cataract occurs in old people, who arenot as a rule robust, we may have to deal withsome patients who are not encouraging subjectsfor any kind of surgical treatment. It is wise tomake the best of such cases and to improve theircondition as far as it is capable of , constipation, and insomnia are alwaysserious complications and should be as far as pos-sible relieved before the operation. 3. The external eye should be , blepharitis, conjunctival and cornealdiseases should first be treated and, if possible,cured. If this is neglected, the abundant germswhich these di
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