Ultrasound imaging of the back of the eye, used to assess the retina and vitreous when a dense cataract or bleeding blocks the doctor's direct view.
A B-scan uses sound waves to create a cross-sectional image of the inside of the eye. It is especially useful when the view of the retina is obscured, for example by a mature cataract, vitreous haemorrhage or dense corneal scarring.
A B-scan can detect retinal detachment, intraocular tumours, foreign bodies and bleeding, allowing accurate diagnosis even when the back of the eye cannot be seen directly.
B-scan stands for Brightness (B-mode) ultrasound scan. It uses sound waves to build a two-dimensional picture of the inside and back of the eye.
It is used when the doctor cannot see the back of the eye directly, for example because of a dense cataract, bleeding in the vitreous or corneal scarring. It helps assess the retina and detect problems such as retinal detachment or tumours.
No. The test is painless. The probe is gently rested on your closed eyelid or on the eye after numbing drops, while a little gel helps the sound waves pass through.
It is a quick test, usually taking just a few minutes per eye, and you can go home straight afterwards.
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