What type of spectacles must a patient wear for proper execution of the Titmus Stereopsis test?

The Titmus Stereopsis test is designed to evaluate depth perception and the visual system's ability to perceive three-dimensional relationships. For this test, light-polarizing spectacles are essential because they help to filter different light waves, enhancing the visual separation of the images presented to each eye. This polarization is crucial as the test relies on binocular vision; the polarized lenses allow each eye to see only its intended image without interference from the other eye's perspective.

Using light-polarizing spectacles ensures that the results of the stereopsis assessment accurately reflect the patient's depth perception capabilities. Other types of spectacles, such as prescription, colored, or anti-glare, do not provide the necessary optical characteristics to effectively support the test's requirements for polarized light and achieving the intended stereoscopic effect.