Ophthalmic Ultrasound (B-Scan)
A B-scan uses high-frequency sound waves to image the back of the eye. This is especially useful when the view is obscured due to cataracts, vitreous hemorrhage or inflammatory uveitis. It is in this circumstance that the general configuration of the retina can be determined, such as if the retina is detached or if there is a foreign body, therefore guiding treatment. This technology is also useful in differentiating and monitoring different types of intraocular tumors.