The Dual Luedde Exophthalmometer is a low cost device to reliably measure the exophthalmos. It requires no special technique or skill.
The purpose of any exophthalmometer is to measure the distance (exophthalmos) between the front most surface of the cornea compared to the external orbital canthus (orbital notch). The normal range varies between 12 mm and 21 mm. A difference between the eyes greater than 2 mm is considered significant.
In the treatment of diseases affecting the exophthalmos, the instrument is used to track the degree of forward (or backward) displacement of the eye. The Dual Luedde, like the Hertel, is not recommended where the orbit or eye socket has been damaged.
The head width adjustment includes a scale to permit repeatable setting of the distance from right to left orbital notch. Setting the device to the proper width for each measurement is useful for accurate and consistent tracking of a patient’s exophthalmos throughout disease and treatment progression.
Includes instructions and storage case.