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The
anatomy of the eye can be examined with ultrasound. The sound
beam delivered is reflected at interfaces of differing tissue
densities and the reflected beam is received by the transducer.
The reflected sound waves are analyzed to give further information
about ocular structures. The transducer itself may be placed
directly on the eye, after topical anesthesia, or on the eyelid,
depending on the desired procedure. A-scan ultrasound is necessary
as part of the preoperative evaluation for cataract surgery,
as the axial length of the eye must be determined to properly
calculate the necessary intraocular
lens power for any given eye. B-scan ultrasound displays internal
anatomy of the eye, allowing for evaluation of the retina
when it is obscured by media opacities, such as occurs with
dense cataract and vitreous hemorrhage. B-scan ultrasound
is also integral in the evaluation of ocular tumors and a
variety of other ocular disorders.
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3D/B/A-Scan
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3D/B/A-Scan |
"Ultrafast"probe
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At
Ahalia, we have the latest ultrasound machine, which gives
a 3 dimensional view of ocular structures & thus helps
in better reconstruction of images.
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