The Use of Polarization Filters to Detect the Edge of the Descemet’s Stripping Automated Endothelial Keratoplasty(DSAEK) Graft

Ide, Takeshi; Yoo , Sonia H; O’Brien, Terrence P

The Use of Polarization Filters to Detect the Edge of the Descemet’s Stripping Automated Endothelial Keratoplasty(DSAEK) Graft

Takeshi Ide^*, Sonia H Yoo , Terrence P O’Brien

Bascom Palmer Eye Institute, Miami, FL, USA

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Identifiers and Pagination:

Year: 2009
Volume: 3
First Page: 3
Last Page: 5
Publisher ID: TOOPHTJ-3-3
DOI: 10.2174/1874364100903010003

Article History:

Received Date: 29/12/2008
Revision Received Date: 22/1/2009
Acceptance Date: 22/1/2009
Electronic publication date: 3/2/2009

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© Ide et al.; Licensee Bentham Open.

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by-nc/3.0/), which permits unrestrictive use, distribution, and reproduction in any medium, provided the original work is properly cited.

^* Address correspondence to this author at the Bascom Palmer Eye Institute, 900 NW 17th Street, Miami, Florida 33136, USA; Tel: +1-305 326 6322; Fax: +1-305 326 6337; E-mail: teyede@hotmail.com

Purpose: To report the technique of combining the two different polarization filters to detect the flap edge of the corneoscleral tissue before trephining the Descemet's stripping automated endothelial keratoplasty (DSAEK) tissue. Methods: A human DSAEK donor tissue was prepared with mechanical microkeratome and the tissue on the cutting block was brought under the microscope. The liner, circular, or the combination of these two polarization filters was placed be-tween the tissue and the microscope. The tissue images were taken with digital camera under either of 3 settings. Results: The combination of circular and linear polarization filters enabled us to recognize the edge of the flap more easily than others. Conclusion: This simple system with polarization filters was effective in clear visualization of the flap edge during DSAEK tissue preparation. These features may significantly enhance safety of various surgical procedures, in addition to DSAEK tissue preparation.

Keywords: DSAEK, polarization filter, edge, flap, circular, linear.

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RESEARCH ARTICLE

The Use of Polarization Filters to Detect the Edge of the Descemet’s Stripping Automated Endothelial Keratoplasty(DSAEK) Graft

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