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Sonography
USG B-SCAN is an eye ultrasound, not an abdominal one, used when the back of your eye can't be examined directly by an ophthalmoscope. A dense cataract, bleeding inside the eye's vitreous gel, or other cloudiness can all block that direct view, and this scan sees past them using sound waves instead. A small probe is placed against the eyelid, or sometimes against the front of a numbed eye, and the resulting image can pick out a retinal detachment, a tumor, or a foreign body inside the eye even when nothing can be seen by looking in. It's a completely different technique from the abdominal ultrasounds elsewhere in this catalogue, built around the eye's much smaller anatomy.
This scan images the inside of your eye when a cataract, bleeding, or other cloudiness blocks a direct view, checking specifically for a retinal detachment, a tumor, or a foreign object. Your doctor uses the pattern and movement seen on the scan to work out which of these is most likely.
Doctors normally examine the back of your eye by looking directly through the pupil with a light. When something blocks that view, a dense cataract, bleeding inside the eye's vitreous gel, or other cloudiness, USG B-SCAN offers a way around the problem entirely.
A small probe is placed gently against your closed eyelid, or in some cases directly against the front of a numbed eye, and sound waves pass through the eye's fluid-filled structures the same way they pass through any other tissue. This builds a cross-sectional picture of the eye's interior even when a cataract or bleeding makes direct viewing impossible.
A retinal detachment shows up as a mobile membrane that moves with the eye. Vitreous hemorrhage, blood inside the eye's gel-like center, appears as scattered echoes that swirl when the eye moves, sometimes described as looking like a snow globe. The scan can also pick out a tumor or a foreign object inside the eye.
Because this scan images the eye specifically, it's unrelated to the abdominal or pelvic ultrasounds elsewhere in this catalogue, and it's typically ordered by an eye specialist rather than as part of a general abdominal workup.
No. Despite sitting in a general ultrasound list, this is an eye scan, used specifically when the back of the eye can't be examined directly.
A dense cataract, bleeding inside the eye, or other cloudiness can block that direct view entirely. This scan uses sound waves to see past the blockage instead.
It can identify a retinal detachment, bleeding inside the eye called a vitreous hemorrhage, a tumor, or a foreign object, each of which has a distinct appearance on the scan.
It's usually placed against your closed eyelid with gel. In some situations it can be placed directly on the front of the eye after numbing drops, depending on what your doctor needs.
This page is general information about the test, not medical advice. Your own report's reference ranges apply — please discuss your results with your doctor.
It's generally painless. If the probe needs to touch the front of the eye directly, numbing drops are used first.
No. It's ultrasound-based, using sound waves rather than X-rays, so there's no radiation exposure.
There's no single preparation that applies to everyone. Ask your doctor or the centre what they'd like you to do beforehand.
It's usually ordered by an eye specialist, most often when a cataract, bleeding, or other cloudiness is blocking a clear view of the back of the eye.