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مقاله
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Abstract
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Title:
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Evaluation of anatomic results and visual performance of Big-Buble and Modified LK Deep anterior lammelar keratoplasty (DALK) in keratoconus eyes
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Author(s):
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Khakshour Hamid, Zarei Ghanavati Siamak, Pourmazar Reza, Hasanzadeh Samira
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Presentation Type:
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Poster
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Subject:
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Cornea and Anterior Segment
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Others:
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Presenting Author:
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Name:
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Reza Pourmazar
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Affiliation :(optional)
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Eye Research Center, School of Medicine, Mashhad University of Medical Sciences.
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E mail:
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dr.pourmazar@yahoo.com
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Phone:
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Mobile:
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09126122025
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Purpose:
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This study was performed to compare visual outcomes of two techniques of DALK: modified and big-bubble methods.
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Methods:
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In a prospective study, records of 80 eyes (80 patients) who had been undergone DALK between 2009 and 2011 using the Big-Bubble & Modified LK techniques were evaluated. Pre- and 6 months postoperative visual acuity, specular microscopy, orb scan, pentacam and abberometry findings were assessed and the outcomes of two techniques were compared. The study was performed in Navid Didegan eye clinic in Mashhad.
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Results:
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After surgery, mean endothelial cell density was significantly higher for patient in modified group (p=0.001). Among orb-scan findings, mean anterior and posterior best fit sphere were different between two groups (p=0.014 and p<0.001 respectively). In pentacam assessment, mean Km posterior, corneal valume and anterior chamber depth from endothelium were dramatically different between patients in two groups (P=0.043, P=0.001 and p= 0.002 respectively). Abberometric findings showed a significantly lower mean total RMS for modified group in relation to big-bubble group (p<0.001).
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Conclusion:
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Post operative results of two incorporated DALK techniques showed overall similar visual outcomes. However it seems that modified LK technique provides better results for patients with severe keratoconus who undergo LK.
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Attachment:
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670sample.pptx
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