Learning objectives
The aims of this exhibit were:
To know the indications and the proper technique for performing the ocular ultrasound.
To review the ultrasonographic anatomy of the ocular globe.
To review echographic signs of the most common ocular pathology through different cases example.
Background
Ultrasound examination of the ocular globe is an accessible,
easy,
non-invasive and useful technique,
in situations that prevent a normal eye examination,
or when examination findings suggest particular pathology of the eye.
However,
there is certain ignorance in this area among radiologists,
as long as ophthalmologists are responsible for making the diagnosis without resorting to ultrasound imaging technique,
or by using more invasive or expensive imaging methods.
Indications of ocular ultrasound:
Situations that prevent a normal eye examination due to the opacity of anterior segment...
Findings and procedure details
OCULAR PATOLOGY
ANTERIORSEGMENT
CRYSTALLINE LENS
Cataract
It can be seen as opacity in lens material with echoes inside the lens or increased anteroposterior diameter of the lens with a high echogenicity of the posterior capsule.
Also can be seen both images.
(Fig.
1)
Lens dislocation
The lens can be moved from its normal position,
normally to posterior segment.
Lens dislocation is caused by damage to the zonular fibers (suspensory ligament) that keep the lens in place,
and can be seen in ocular trauma and Marfan...
Conclusion
Ultrasonography is a useful,
accessible and easy exploration for the diagnosis of the ocular patology.
All radiologists should properly know the ocular anatomy and semiology for the right interpretation of the US exploration thereof.
References
- Calzado Y.
Ecografia ocular y orbitaria.
1a ed.
Buenos Aires: Ediciones Journal; 2005.
- Shinra Z.
Use of ocular ultrasound for the evaluation of retinal detachment.
The journal of emergency medicine 2011; 40: 53-57.
- Spaide RF.
Diseases of the retina and vitreous.
1st ed.
Philadelphia: WB Saunders; 1999.
- Peñata-Ruiz N.
Ultrasonido ocular y orbitario con Doppler color.
Anatomia normal y aspectos técnicos.
Anales de Radiología México 2013;2:70-73.