Lasers and Ultrasound
 
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Trabeculectomy  

Trabeculectomy

A transverse scan of a trabeculectomy site shows the lacking of the sclera and of the iris (iridectomy). Peripheral iris iridectomy touch the sclera such as a synechia. To the left of the scan, three transverse ciliary processes are evident. The conjunctival bleb over the trabeculectomy site shows a low level of reflectivity, indicating positive post-surgery function.

 
Cataract  

Cataract

The zonula, an anterior lens opacity (possibly post-traumatic cataract) and an iris-cornea synechia with angle closure on the left, are visible.

IOL  

IOL

A subluxated IOL behind the pupil is visible. It is probably located in the bag, despite the fact that the loops are not visible.

 
Iris-Ciliary Body Cysts  

Iris-Ciliary Body Cysts

A transverse scan shows two iris-ciliary body junction cysts.

 
Iris-Ciliary Body Cysts  

Iris-Ciliary Body Cysts

A longitudinal scan shows one of these two cysts.

 
Endophthalmitis  

Endophthalmitis

Anterior chamber membranes close to the cornea are visible. Small, reflective dots are present in the aqueous. A low reflective structure (hypopion) is present in the angle. In addition, a fibrous membrane is present across the pupil, obscuring the lens. A low reflective structure is also noted in the posterior chamber.

 
Ex-PRESS Shunt in Uveitic Glaucoma  

Ex-PRESS Shunt in Uveitic Glaucoma

The outer edge of the Ex-PRESS shunt is visible with a back-scattering effect. The scleral flap is elevated with a hypoechoic space under the flap. The angle is open. The patient is pseudophakic (the artefact of the loop is visible with a small back-scattering).

 
Ex-PRESS Shunt in Uveitic Glaucoma  

Ex-PRESS Shunt in Uveitic Glaucoma

The Ex-PRESS shunt is completely visible. The back-scattering effect, which is caused by the presence of a metallic material, obscures part of the iris. The shunt is well positioned.

 
Ex-PRESS Shunt in Uveitic Glaucoma  

Ex-PRESS Shunt in Uveitic Glaucoma

The inner edge of the Ex-PRESS shunt is visible without any contact with either the endothelium or the iris.

 
Ahmed Glaucoma Valve  

Ahmed Glaucoma Valve

Transverse scans show the tube of the Ahmed Glaucoma Valve positioned under the sclera and in the anterior chamber (with a shadow effect that covers the iris) respectively.

 
Ahmed Glaucoma Valve  

Ahmed Glaucoma Valve

Transverse scans show the tube of the Ahmed Glaucoma Valve positioned under the sclera and in the anterior chamber (with a shadow effect that covers the iris) respectively.

 
Ahmed Glaucoma Valve  

Ahmed Glaucoma Valve

The plate of the valve is visible with a shadow effect. It is impossible to recognize the valve mechanism by ultrasound.

 
Angle Measurement  

Angle Measurement

The Eye Cubed™ enables biometric measurements of the anatomical structures of the eye. In order to obtain an accurate measurement, the tip of the caliper (the point of the triangle, as shown in the scan) must be located at the level of the scleral spur.

Images courtesy of Michele Figus, MD PhD, Chiara Posarelli, MD, and Marco Nardi, MD, University of Pisa, Italy.

To learn more about the Eye Cubed™ click here