Document Detail


Posterior corneal curvature assessment after Epi-LASIK for myopia: comparison of Orbscan II and Pentacam imaging.
MedLine Citation:
PMID:  22323878     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
PURPOSE: To compare the changes in posterior corneal curvature using scanning slit topography (Orbscan II) and Scheimpflug imaging (Pentacam) before and after Epi-laser in situ keratomileusis (LASIK) for myopia.
METHODS: In a prospective observational case-series study, 20 myopic patients having undergone Epi-LASIK were examined serially with two different devices, Orbscan II and Pentacam, preoperatively and one month postoperatively. Posterior central elevation (PCE) and posterior maximal elevation (PME) were compared between the two devices, and the changes in parameters after Epi-LASIK were analyzed using a difference map.
RESULTS: All parameters (preoperative and postoperative PCE and preoperative and postoperative PME) that were measured using the Orbscan II were significantly greater compared to those of the Pentacam (for all p < 0.001). PCE and PME were significantly increased one month postoperatively in the Orbscan II measurements (p < 0.05) but were not significantly increased in the Pentacam measurements. Also, ΔPCE and ΔPME, in the difference map obtained by each serial scanning, were significantly greater in the Orbscan II measurements than with the Pentacam (p = 0.012, p = 0.016).
CONCLUSIONS: The Pentacam measurements displayed significantly reduced values in all parameters related to posterior corneal elevation compared to those of the Orbscan II. The Pentacam showed no significant change in posterior corneal curvature after Epi-LASIK, based on the difference map.
Authors:
Yong-Soo Byun; So-Hyang Chung; Young-Geun Park; Choun-Ki Joo
Related Documents :
17369118 - Metabolic and anthropometric changes one year after switching from didanosine/stavudine...
10345968 - Safety and efficacy of metformin in a restricted formulary.
17598368 - Beneficial effect of low-density lipoprotein apheresis (ldl-a) on refractory nephrotic ...
20206788 - Results of a retrospective database analysis of adherence to statin therapy and risk of...
10713008 - Intrapleural administration of a large amount of diluted fibrin glue for intractable pn...
16791668 - Short- and long-term outcomes of older patients in intermediate care units.
Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't     Date:  2012-01-14
Journal Detail:
Title:  Korean journal of ophthalmology : KJO     Volume:  26     ISSN:  1011-8942     ISO Abbreviation:  Korean J Ophthalmol     Publication Date:  2012 Feb 
Date Detail:
Created Date:  2012-02-10     Completed Date:  2012-05-31     Revised Date:  2013-06-26    
Medline Journal Info:
Nlm Unique ID:  8804513     Medline TA:  Korean J Ophthalmol     Country:  Korea (South)    
Other Details:
Languages:  eng     Pagination:  6-9     Citation Subset:  IM    
Affiliation:
Department of Ophthalmology and Visual Science, Seoul St. Mary's Hospital, The Catholic University of Korea College of Medicine, Seoul, Korea.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Adult
Corneal Topography / methods*
Female
Humans
Keratomileusis, Laser In Situ / methods*
Male
Myopia / surgery*
Prospective Studies
Treatment Outcome
Comments/Corrections

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Outcomes of levator resection at tertiary eye care center in Iran: a 10-year experience.
Next Document:  Which keratometer is most reliable for correcting astigmatism with toric intraocular lenses?