As Concerns the Eye, Drifts, Tremors, and Microsaccades

Question

As concerns the eye, drifts, tremors, and microsaccades
A) Are miniature eye movements, all of which are voluntary
B) Are miniature eye movements, some of which are voluntary
C) Are miniature eye movements, none of which is voluntary
D) Are all signs of syphilis

Accepted Answer

Drifts, tremors, and microsaccades are all miniature eye movements, but not all of them are voluntary. Drifts and tremors are involuntary movements that help to maintain fixation on an object, while microsaccades are small, rapid eye movements that are relatively voluntary and occur during fixation. None of these movements are related to syphilis.