Visualization Techniques for Port Delivery System Refill-Exchange.

PURPOSE: To describe methods for improving visualization of the port delivery system (PDS) with ranibizumab (Susvimo) during the refill-exchange procedure when visualization of the implant septum is compromised.

METHODS

Multiple methods of PDS visualization using external illumination were evaluated.

RESULTS

Transpupillary and transscleral illumination of the PDS reservoir body using various light sources improved visualization of the implant septum during the refill-exchange procedure.

CONCLUSIONS

Indirect internal illumination of the PDS implant can facilitate visualization of the implant septum during the refill-exchange procedure, particularly when visualization is compromised by conjunctival edema, thickened Tenon capsule, or fibrous capsule formation.