Technology: B scan

B-scan ultrasonography is a diagnostic test that helps your physician to evaluate the structures within the eye for eye disorders such as choroidal melanoma, optic nerve drusen, retinal tear or detachment, that would otherwise be limited or obscured by cataracts, corneal scars, vitreous hemorrhage (bleed) or other eye conditions. Using the principles of ultrasound, high-frequency sound waves are directed into the eye by a small probe. Sound waves reflect off the structures inside the eye and convert into an image that can be viewed on a screen. This test is easy and painless.