Which type of ultrasound is most commonly used to evaluate vitreous and retinal conditions?

The most commonly used type of ultrasound to evaluate vitreous and retinal conditions is B-mode ultrasound. This is primarily because B-mode, or brightness mode, provides two-dimensional images of the eye structures, enabling clinicians to visualize the anatomy and any pathological changes present in the vitreous and retina. It displays the reflectivity of different tissues, allowing for detailed images that can uncover abnormalities such as retinal detachments, hemorrhages, or vitreous opacities.

B-mode is particularly advantageous in ophthalmic applications because it offers clarity and detail that are crucial when assessing the eye's structure. For conditions affecting the retina and vitreous, such as tears or detachment, the depth and shape of the images produced by B-mode allow for accurate diagnosis and treatment planning. This capability makes it the preferred choice in ophthalmic sonography compared to other modes, which may not provide the same level of detail or clarity of the intraocular structures.