Kratz-Barraquer Speculum - W/ WingsDDP Elite USA Kratz Barraquer Eye Speculum is a commonly used tool in visualizing the ophthalmologic surgical field. The speculum features open wire blades for atraumatic spreading of the lids. The variable compression of the spring allows the surgeon to adjust the degree of spreading. In addition, the speculum features wings for increased control during lid retraction. Please note that website images are often representative of the product family and