Ocular ultrasound utilizes sound waves to image ocular tissue. High frequency sound waves travel through the eye and are reflected by ocular structures. These reflections form an image of the eye. Importantly, sound travels through structures that are opaque to light such as blood and dense cataract.
During ocular ultrasound, your eye will be numbed with drops. You will be asked to look in different directions as a probe is gently rested against your eye.
Ocular ultrasound is a useful technique to image the posterior structures of the eye when the view is otherwise obscured by vitreous hemorrhage or cataract. Retinal tear or detachment, vitreous hemorrhage, and ocular tumors are visualized by ultrasonography.