Ultrasonography is used when the physician cannot sufficiently see the retina. This may occur because of a severe amount of blood in the eye (vitreous hemorrhage) or other opacity such as a cataract (clouding of the lens).  It is also used to aid in diagnosis and treatment planning for various tumors that will rarely develop in the eye.  A probe is used to transmit and receive sound waves (sonar) that are reflected from the various tissues within the eye.  The reflected sound waves generate a two-dimensional picture of the area of the eye behind the lens to help determine the condition of the retina, measure tumors, and evaluate other conditions.

Sample of an Ultrasound

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