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Preoperative anterior segment optical coherence tomography as a predictor of postoperative phakic intraocular lens position

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Session Details

Session Title: Interactive Free Paper Session: Anterior chamber phakic IOLS

Session Date/Time: Tuesday 16/09/2014 | 16:30-18:00

Paper Time: 17:00

Venue: Auditorium

First Author: : M.Fallah Tafti IRAN

Co Author(s): :    R. Soltani Moghaddam              

Abstract Details


To evaluate anterior segment optical coherence tomography (AS-OCT) in the preoper- ative simulation of postoperative iris-fixated phakic intraocular lens (pIOL) position in the anterior chamber.


Farabi Eye Research Center, Department of Ophthalmology, Tehran University of Medical Sciences, Tehran, Iran


Using AS-OCT, the pIOL position was simulated preoperatively in 2 ways and compared with the actual postoperative pIOL position. For preoperative evaluations, the simulator was placed on the posterior pigmented epithelium of the iris. Then, the simulation was performed with the simulator placed in the middle of the iris tissue. The following distances were measured: from the center of the pIOL to the endothelium, from the edge of the pIOL to the endothelium, and from the posterior surface of the pIOL to the crystalline lens


The study examined 26 eyes (16 patients). Although all distances in both simulation methods (except the lens vault in the first method of simulation) were highly correlated (all P<.009), only the results with the simulator placed in the middle of the iris tissue were not statis- tically different from the corresponding postoperative measurements (PZ.209 and PZ.564 for distance from endothelium to the center and the pIOL edge, respectively).


Using the pIOL template of the AS-OCT system for preoperative simulation of iris-fixated pIOLs improved the criteria for patient selection for implantation of these pIOLs. The simulator should be placed in the middle of the iris tissue for preoperative simulation

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