Ultrasound, also referred to as echography, uses high frequency sound waves to produce images of the internal eye structures. It is a helpful diagnostic tool if cataracts or other conditions prevent a doctor from viewing inside of your eye with traditional methods. Ultrasound is helpful for diagnosing retinal detachment, vitreous bleeding, tumors, inflammation, lesions in the eye socket bone, or foreign bodies in the eye. A-scan ultrasound is used to take measurements for artificial lenses for cataract surgery. This quick and painless procedure can be performed in your doctor’s office.