The entire Gulden occluder family is molded from strong, lightweight ABS plastic, with an easy cleaning gloss finish. Occluders are available in black or white, and have a standard length of 25cm. State-of-the-art bonding technique ensures greater durability.
Occluders are used to cover one eye during testing or treatment. Occluders are cupped to a 70mm radius.
Maddox rods are used in conjunction with prisms measuring lateral and vertical phoria in both near and distant vision. Maddox rod phoria testing is a suitable alternative to the Von Graefe Phoria technique, and is indicated when a patient is unable to see two targets in the Von Graefe test. The Maddox rod test can be performed in free space without use of the phoropter.