Attachment for Sweet Eye Localizer

Abstract

A great many roentgenologists who are called upon to make only an occasional localization of foreign body in the eye or orbit are using the original Sweet localizer, because of the cost of the improved model Sweet localizer. Anyone who has worked with the original model has certainly been confronted with the annoyance of having the localizer shift out of place after the proper alignment has been accomplished, because the small base allows very easy movement in any direction. The exact interpretation of the results obtained in localization is made on the relative positions of the shadows of the foreign body and of the cone and ball, and it is, therefore, essential that, once the correct alignment has been obtained, the localizer shall remain in the correct position. The writer submits herewith a simple addition to the original Sweet model, consisting of side rails and a Spencer mechanical stage to which is attached a small plate upon which the localizer is permanently fixed. With this arrangement, lateral and forward movements of the localizer are accurately and easily made, and, when once aligned, there is no fear of its moving about. The mechanical stage can be moved along the side rail so as to compensate for the short forward travel; it can also be used on either side, for right or left eye localization. The cost is small, while the time saved and the assurance that the localizer will stay put,” are well worth it.