Which test uses prisms to center the corneal reflex?

The Krimsky test is designed specifically to assess strabismus and utilizes prisms to objectively measure the alignment of the eyes by centering the corneal reflex. In this test, prisms are placed in front of the eye that is deviated until the corneal light reflex is centered on the pupil of the other eye. This process provides a measurable outcome that helps determine the degree of misalignment or strabismus present.

The function of the Krimsky test makes it essential for clinicians to evaluate the eye's ability to maintain proper alignment, particularly in cases where a visual perception discrepancy may exist. It is especially useful for detecting even small angles of deviation that may not be observed during routine examinations.

The other tests, while related to eye alignment, operate differently. For instance, the Hirschberg test assesses the alignment of the eyes using a light reflex without prisms. The Cover test evaluates how each eye responds when the other is covered, but it does not use prisms to center reflexes. The Alignment test can also refer to various methods of assessing eye position but does not specifically involve the use of prisms in the way the Krimsky test does. Thus, the Krimsky test stands out as the one that exclusively employs