Comparison of Medpor Coated Tear Drainage Tube versus Silicon Tear Drainage Tube in Conjunctivodacryocystorhinostomy: Problems and Solutions

Table 3

The comparative advantages and disadvantages of both tubes.

Medpor coated tube	Silicon tube
Advantages	Advantages
(1) No stabilization problems and perfect tissue compatibility.	(1) Perioperative tube length can be adjusted.
(2) Lower occurrence of lumen obstruction owing to glass lumen internal structure.	(2) It may be used during reoperation.
(3) The ability to vascularize prevents extrusion.	(3) Cheaper.
Disadvantages	Disadvantages
(1) Perioperative adjustment problems due to standard length.	(1) It poses stabilization problems.
(2) Inability to use the coated section in reoperation.	(2) High rates of extrusion and malposition.
(3) Expensive.	(3) High rate of lumen obstruction.
(4) High rates of proximal and distal obstruction in the early postoperative term due to irritation of the adjacent tissues by Medpor coating.	(4) Low success rate.