Ocular
iNDICATIONS
Blurry vision, flashers, floaters, vision loss
Ocular ultrasound is contraindicated if there is any suspicion for globe rupture or ocular trauma
SET UP
Probe choice: linear
Patient position: supine
Settings: ocular settings!
LOTS of Gel
AcQUISITION
Place a tegaderm patch over the closed eyelid
Apply large amounts of gel over closed eyelid
Place the probe gently on the gel, without making direct contact with the patient’s eyelid. The indicator is pointed towards the patient’s right
Fan gently through the entire eye
Identify your landmarks
Anterior chamber: anechoic in the near field
Lens: hyperechoic curved line in the near field
Vitreous humor: anechoic fluid filled space
Retina: hyperechoic line
Optic nerve: hypoechoic in the far field
Ask the patient to move their eye left and right - this may allow for pathologic debris to move through the vitreous fluid
Rotate the probe 90 degrees so that the probe is pointing towards the patient’s head and repeat!
Normal Anatomy
Pathology
Retinal detachment: bright, echogenic membrane in the posterior globe. Attached to the optic disc.
Fungal endopthalmitis: Hyperechoic mass mobile in the posterior chamber
Papilledema
Drusens nodule
Lens dislocation
Retinal Detachment and Vitreous Hemmorrhage
Ultrasound G.E.L. Podcast
Want to learn more? Take a listen to a review of the literature!
