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Causes of intracorneal ring segment explantation

Poster Details

First Author: M.Iglesias SPAIN

Co Author(s):    M. Garc   J. Hern   P. Drake   M. Teus     

Abstract Details



Purpose:

To illustrate the causes of intracorneal ring segments (ICRS) explantation in patients with ectatic corneal disease.

Setting:

Vissum Corporaci├│n Oftalmol├│gica Santa Hortensia, Madrid, Spain

Methods:

We performed a retrospective of 92 eyes in which ICRS were implanted between 2007 and 2009. Two types of ICRS were implanted during this period: in 42 eyes (45.7%) INTACS ring segments were implanted, and in 50 eyes (54.3%) KERARING implants were used. In all cases a femtosecond laser was used to create the corneal channels where the implant was inserted. We analyzed the incidence of explantation of both types of ICRS and the causes.

Results:

An explantation of the ICRS was needed in 10 cases (10.9%): 8 INTACS and 2 KERARINGS. In all cases the cause of the explantation was the segment extrusion. Interestingly, we found that the ICRS extrusion was related to the contact of the extremity of the segment with the vertical corneal incision in all cases.

Conclusions:

Based on our results, the main reason of ICRS explantation is the segment extrusion. The contact between the extremity of the segment and the corneal incision area seem to facilitate the segment extrusion. KERARINGS seem to be much better tolerated than INTACS. FINANCIAL DISCLOSURE?: No

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