VISUALIZATION OF FOREIGN BODIES IN THE IRIDOCORNEAL ANGLE

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Abstract
A foreign body in the angle of the anterior chamber of the eye is usually well seen, or its presence may be suggested by the signs of its entry or by the roentgen picture. Sometimes, however, leading signs may be absent, and a foreign body caught in the angle may be invisible by ordinary means. In such cases the use of some form of gonioscopy is indispensable. Various methods may be employed. Trantas,1 since 1898, has been bringing the angle into the field of an ophthalmoscope by means of firm pressure over the limbus with a transilluminating apparatus or even with the finger. By this means he has been able to visualize the angle2 and to make observations on the canal of Schlemm3 and the ora serrata.4 This method, however, gives but an imperfect view. It is difficult for the physician and at best highly uncomfortable

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